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Abbreviation: RR
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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
relative risk
(20510 times)
Medicine
(3204 times)
CI (9411 times)
RCTs (1287 times)
OR (647 times)
1976 Occupation and Hodgkin's disease.
risk ratio
(9458 times)
Medicine
(3784 times)
CI (5877 times)
RCTs (2362 times)
MD (1558 times)
0 Efficacy of Electrical Stimulation of the Occipital Nerve in Intractable Primary Headache Disorders: A Systematic Review with Meta-Analyses.
rate ratio
(2174 times)
Epidemiology
(295 times)
CI (986 times)
OR (83 times)
BMI (52 times)
1983 Optical prophylaxis for environmental myopia: an epidemiological assessment of short-term effects.
respiratory rate
(1733 times)
Veterinary Medicine
(180 times)
HR (640 times)
VT (170 times)
RT (122 times)
1975 Water diuresis from clonidine (catapres).
response rate
(1269 times)
Neoplasms
(893 times)
OS (522 times)
PFS (509 times)
NSCLC (181 times)
1981 Electrophysiological correlates of diurnal feeding rhythm disruption in rats.
relapsing-remitting
(680 times)
Neurology
(451 times)
MS (586 times)
SP (245 times)
PP (136 times)
1987 Reduction of circulating suppressor inducer T lymphocytes in the exacerbation phase of remitting-relapse multiple sclerosis.
resonance Raman
(455 times)
Biochemistry
(222 times)
DFT (30 times)
EPR (23 times)
MCD (15 times)
1977 Determination of ionization state by resonance Raman spectroscopy Sulfonamide binding to carbonic anhydrase.
ruthenium red
(285 times)
Physiology
(40 times)
SR (15 times)
ROS (10 times)
CsA (9 times)
1968 Ultrastructure of the surfaces of cells infected with avian leukosis-sarcoma viruses.
ribonucleotide reductase
(269 times)
Neoplasms
(76 times)
HU (25 times)
HSV (19 times)
HSV-1 (12 times)
1984 Is ribonucleotide reductase in Ehrlich ascites mammary tumour cells the target of a growth inhibitor purified from bovine mammary gland?
10  response regulator
(204 times)
Microbiology
(56 times)
HK (87 times)
TCS (47 times)
TCSs (30 times)
1996 Three two-component signal-transduction systems interact for Pho regulation in Bacillus subtilis.
11  resistance ratio
(112 times)
Zoology
(34 times)
PBO (10 times)
LC (6 times)
MFO (5 times)
1991 Chlorpyrifos resistance in German cockroaches (Dictyoptera: Blatellidae) from restaurants.
12  relapse rate
(101 times)
Hematology
(45 times)
OS (47 times)
DFS (27 times)
AML (25 times)
1985 Are defaulters with paucibacillary leprosy a problem?
13  recurrence rate
(92 times)
General Surgery
(22 times)
OS (13 times)
DFS (11 times)
CI (9 times)
1984 Adriamycin instillations as recurrence prophylaxis in superficial urinary bladder cancer.
14  recovery rate
(81 times)
Orthopedics
(23 times)
JOA (20 times)
CSM (7 times)
mJOA (6 times)
1981 Calculated recovery rates in severe head trauma.
15  R-R interval
(59 times)
Cardiology
(23 times)
HF (14 times)
HRV (12 times)
LF (10 times)
1985 Use of a computer in analysis of heart rate and blood pressure response to the Valsalva maneuver.
16  reversal reaction
(50 times)
Tropical Medicine
(23 times)
ENL (28 times)
MDT (6 times)
MB (5 times)
1986 Unilateral oedema of reversal reaction (RR) in borderline leprosy.
17  ridge regression
(46 times)
Chemistry Techniques, Analytical
(10 times)
PLS (21 times)
PCR (15 times)
PLSR (6 times)
2002 Prediction of tissue-air partition coefficients: a comparison of structure-based and property-based methods.
18  Relative Risks
(40 times)
Medicine
(15 times)
CI (15 times)
OR (6 times)
NNT (4 times)
1983 Dark tobacco and lung cancer in Cuba.
19  reference range
(39 times)
Endocrinology
(9 times)
FT4 (4 times)
TSH (3 times)
anti-Tg (2 times)
1998 Applicability of the third-generation, thyroid-stimulating hormone assay in pregnancy.
20  recurrence
(38 times)
Neoplasms
(12 times)
CI (8 times)
OS (6 times)
HCC (4 times)
1998 [A clinical report of high-dose epirubicin combined with cyclophosphamide and fluorouracil for advanced breast cancer].
21  regional recurrence
(38 times)
Neoplasms
(21 times)
LR (17 times)
DM (14 times)
OS (13 times)
1995 Detection of loco-regional recurrence after breast-conserving surgery and radiotherapy.
22  recovery room
(37 times)
Anesthesiology
(21 times)
ICU (4 times)
OR (4 times)
VAS (3 times)
1981 Postoperative hypothermia in adults: relationship of age, anesthesia, and shivering to rewarming.
23  risk reduction
(36 times)
Cardiology
(6 times)
CI (8 times)
RA (4 times)
AOR (3 times)
1998 Adapting an effective primary care provider STD/HIV prevention training programme.
24  rifampicin-resistant
(35 times)
Medicine
(11 times)
TB (14 times)
MDR (9 times)
MDR-TB (7 times)
2002 [Molecular genetic methods for the detection of rifampicin-resistant Mycobacterium tuberculosis strains].
25  root resorption
(34 times)
Dentistry
(14 times)
CI (3 times)
PN (3 times)
CBCT (2 times)
1979 Net photosynthesis, root respiration, and regrowth of Bouteloua gracilis following simulated grazing.
26  relative recovery
(32 times)
Chemistry Techniques, Analytical
(15 times)
GC-MS (4 times)
RL (4 times)
RSD (4 times)
1989 Preferential loss of Leu 8-, CD45R, HLA-DR+ CD8 cell subsets during in vitro culture of mononuclear cells from human immunodeficiency virus type I (HIV)-seropositive former blood donors.
27  relaxation response
(31 times)
Complementary Therapies
(10 times)
MGH (3 times)
QOL (3 times)
HIV/AIDS (2 times)
1981 Autonomic responses to stress: the effects of progressive relaxation, the relaxation response, and expectancy of relief.
28  righting reflex
(31 times)
Pharmacology
(11 times)
NPS (4 times)
SM (4 times)
HR (3 times)
1983 Assessment of anaesthetic action of morphine and fentanyl in rats.
29  random regression
(30 times)
Veterinary Medicine
(20 times)
MT (7 times)
DIM (3 times)
SAD (3 times)
2001 Genetic modelling of test day records in dairy sheep using orthogonal Legendre polynomials.
30  reverse remodeling
(30 times)
Cardiology
(21 times)
LV (19 times)
CRT (15 times)
CMR (6 times)
2006 Usefulness of ventricular longitudinal contractility assessed by Doppler tissue imaging in the prediction of reverse remodeling in patients with severe left ventricular systolic dysfunction.
31  reverse redistribution
(29 times)
Nuclear Medicine
(16 times)
AMI (5 times)
SPECT (4 times)
CAD (3 times)
1981 Reverse redistribution: worsening of thallium-201 myocardial images from exercise to redistribution.
32  relapsed/refractory
(28 times)
Hematology
(13 times)
MM (8 times)
ND (7 times)
OS (7 times)
2013 The mechanism of action, pharmacokinetics, and clinical efficacy of carfilzomib for the treatment of multiple myeloma.
33  radioresistant
(27 times)
Neoplasms
(18 times)
RS (15 times)
RT (7 times)
EMT (5 times)
1995 Abnormal pattern of post-gamma-ray DNA replication in radioresistant fibroblast strains from affected members of a cancer-prone family with Li-Fraumeni syndrome.
34  resolution recovery
(27 times)
Nuclear Medicine
(11 times)
SPECT (10 times)
OSEM (8 times)
AC (6 times)
2001 Clinical impact of combination of scatter, attenuation correction, and depth-dependent resolution recovery for (201)Tl studies.
35  Ross River
(27 times)
Biology
(8 times)
BF (6 times)
KUN (4 times)
MVE (4 times)
1983 The exanthem of Ross River virus infection: histology, location of virus antigen and nature of inflammatory infiltrate.
36  Roundup Ready
(26 times)
Nutritional Sciences
(11 times)
PCR (6 times)
GM (5 times)
AMPA (1 time)
1999 [Food additives and genetically modified food--a risk for allergic patients?].
37  relative response
(25 times)
Allergy and Immunology
(14 times)
MLC (13 times)
GVHD (7 times)
Gr (2 times)
1977 Mixed lymphocyte reaction and graft survival in forty cadaveric renal transplants.
38  random ratio
(24 times)
Behavioral Sciences
(9 times)
RI (13 times)
FI (2 times)
IRTs (2 times)
1963 Random interval schedules of reinforcement.
39  repeat revascularization
(23 times)
Cardiology
(15 times)
MI (9 times)
PCI (9 times)
CABG (6 times)
1997 Steady-state captopril renography: continuous monitoring of the captopril-induced increase in 99mTc-MAG3 mean parenchymal transit time in renovascular hypertension.
40  relative risk of death
(22 times)
Toxicology
(5 times)
AChE (5 times)
CI (4 times)
OPCs (4 times)
1991 Flow cytometric DNA index in the prognosis of colorectal cancer.
41  rapid response
(18 times)
Therapeutics
(3 times)
ACGT (1 time)
BED (1 time)
CC (1 time)
1994 Corticosteroid rescue treatment of progressive fibroproliferation in late ARDS. Patterns of response and predictors of outcome.
42  reference region
(18 times)
Diagnostic Imaging
(9 times)
AIF (6 times)
DCE-MRI (6 times)
TOI (5 times)
2005 Quantitative pharmacokinetic analysis of DCE-MRI data without an arterial input function: a reference region model.
43  refractory
(18 times)
Neoplasms
(12 times)
PFS (5 times)
MM (4 times)
OS (4 times)
2012 Treatment with lenalidomide and dexamethasone in patients with multiple myeloma and renal impairment.
44  Rehmanniae Radix
(18 times)
Pharmacology
(5 times)
AR (4 times)
CO (2 times)
ECM (2 times)
2011 Transcriptional profiling of human skin fibroblast cell line Hs27 induced by herbal formula Astragali Radix and Rehmanniae Radix.
45  reticulorumen
(18 times)
Physiology
(9 times)
MRT (8 times)
GIT (4 times)
ROO (2 times)
1980 Relationships between eating rate of sheep and live weight gain, weight and fill of the gastrointestinal tract.
46  R wave to R wave
(17 times)
Medicine
(3 times)
HRV (7 times)
rMSSD (4 times)
HF (3 times)
1996 Augmentation of parasympathetic nerve function in patients with extrinsic bronchial asthma--evaluation by coefficiency of variance of R-R interval with modified long-term ECG monitoring system.
47  recall rate
(17 times)
Radiology
(9 times)
CDR (10 times)
DM (5 times)
DR (5 times)
1998 Endoscopic perforator vein division with ablation of superficial reflux improves venous hemodynamics.
48  relative risk estimates
(17 times)
Medicine
(3 times)
CI (6 times)
CIs (4 times)
NSAIDs (2 times)
1986 Mental health care in Southern Italy: application of case-control methodology for the evaluation of the impact of the 1978 psychiatric reform.
49  renin release
(17 times)
Physiology
(10 times)
TcAMPc (3 times)
AC-cAMP (1 time)
AII (1 time)
1975 Relationship between perfusion pressure and renin release in the isolated rat kidney.
50  rotarod
(17 times)
Psychopharmacology
(3 times)
EPM (5 times)
MWM (4 times)
OF (4 times)
1983 Tolerance and cross-tolerance to central nervous system depressants after chronic pentobarbital or chronic methaqualone administration.
51  rectus resection
(16 times)
Ophthalmology
(6 times)
BLR (4 times)
OS (4 times)
PD (4 times)
2003 Costs and benefits of intraoperative MR-guided brain tumor resection.
52  repeatedly reactive
(16 times)
Hematology
(7 times)
EIA (5 times)
HCV (3 times)
HIV (3 times)
1988 Detection of antibodies to human T-lymphotropic virus type 1 (HTLV-1).
53  residual risk
(16 times)
Hematology
(10 times)
HIV (6 times)
HCV (5 times)
HBV (4 times)
2006 [Safety of the blood supply in Mexico from 1999 to 2003].
54  revascularization
(16 times)
Cardiology
(11 times)
MACE (9 times)
CI (7 times)
MI (7 times)
2013 Outcomes after complete versus incomplete revascularization of patients with multivessel coronary artery disease: a meta-analysis of 89,883 patients enrolled in randomized clinical trials and observational studies.
55  risk of mortality
(16 times)
Cardiology
(3 times)
RRs (6 times)
CVD (4 times)
RCTs (4 times)
2008 Betel nut chewing is associated with increased risk of cardiovascular disease and all-cause mortality in Taiwanese men.
56  regulatory region
(15 times)
Virology
(6 times)
PML (6 times)
JCV (4 times)
CSF (3 times)
1998 Transplacental transmission of human polyomavirus BK.
57  relapse risk
(15 times)
Hematology
(9 times)
OS (10 times)
AML (7 times)
CR (4 times)
2001 The predictive value of hierarchical cytogenetic classification in older adults with acute myeloid leukemia (AML): analysis of 1065 patients entered into the United Kingdom Medical Research Council AML11 trial.
58  relative mortality risk
(15 times)
Nephrology
(8 times)
CI (3 times)
ESRD (3 times)
HD (3 times)
1992 Comorbid conditions and correlations with mortality risk among 3,399 incident hemodialysis patients.
59  resistance-related
(15 times)
Botany
(7 times)
FHB (8 times)
D3G (3 times)
DON (3 times)
1994 Failure of a single cycle of high dose cyclophosphamide followed by intensive myeloablative therapy and autologous stem cell transplantation to improve outcome in relapsed disease.
60  radiation-resistant
(14 times)
Neoplasms
(6 times)
RS (6 times)
WT (2 times)
ATM (1 time)
1997 Transcription and activity of antioxidant enzymes after ionizing irradiation in radiation-resistant and radiation-sensitive mice.
61  Radix Rehmanniae
(14 times)
Complementary Therapies
(6 times)
RA (8 times)
BSYQT (2 times)
CNS (2 times)
2008 [Effect of Herba Epimedil Brevicornus and prepared Radix Rehmannia on glucocorticoid receptor in glucocorticoid receptor down-regulated rats].
62  risk of all-cause mortality
(14 times)
Vascular Diseases
(6 times)
CI (9 times)
PCI (4 times)
RCTs (3 times)
2015 Efficacy and safety of angiotensin receptor blockers in older patients: a meta-analysis of randomized trials.
63  risk of stroke
(14 times)
Cardiology
(6 times)
CI (5 times)
CHD (3 times)
CVD (3 times)
2011 Potassium intake, stroke, and cardiovascular disease a meta-analysis of prospective studies.
64  rectification ratio
(13 times)
Chemistry
(4 times)
ITO (2 times)
AFM (1 time)
CdSe (1 time)
2002 Effects of dihydrotestosterone on cardiac inward rectifier K(+) current.
65  removal rate
(13 times)
Environmental Health
(5 times)
HD (3 times)
FR (2 times)
MCO (2 times)
2006 Removal of pharmaceuticals in sewage treatment plants in Italy.
66  renal resistance
(13 times)
Transplantation
(6 times)
HMP (5 times)
DGF (4 times)
MAP (3 times)
1986 [Effect of inhibition of angiotensin converting enzyme on hypertension following kidney transplantation].
67  radical resection
(12 times)
General Surgery
(6 times)
LR (4 times)
TEM (2 times)
APR (1 time)
2004 Multimodal management of stages III-IVa malignant thymoma.
68  relative reduction
(12 times)
Cardiology
(4 times)
PCI (3 times)
IS (2 times)
ADP (1 time)
1995 Differential effect of age on metabolisable energy content of high protein-low energy and low protein-high energy diets in young broiler chicks.
69  recombination rate
(11 times)
Genetics
(4 times)
BER (4 times)
NER (4 times)
MMR (2 times)
2002 Error-free recombinational repair predominates over mutagenic translesion replication in E. coli.
70  recovery
(11 times)
Biocompatible Materials
(1 time)
PLA (2 times)
Tg (2 times)
ACSC (1 time)
2009 [Factors influencing engraftment in hematological patients after human leukocyte antigen matched sibling allogeneic blood and marrow transplantation].
71  respiratory
(11 times)
Pediatrics
(3 times)
HR (7 times)
ANOVA (2 times)
BD (1 time)
1999 Physiologic stability of newborns during cup- and bottle-feeding.
72  ring resonator
(11 times)
Ophthalmology
(10 times)
MZI (2 times)
CMS (1 time)
CMT (1 time)
2006 Berry's phase amplification by a ring resonator.
73  rods and rings
(11 times)
Medicine
(3 times)
IMPDH2 (6 times)
HCV (5 times)
CTPS1 (3 times)
2011 Induction of cytoplasmic rods and rings structures by inhibition of the CTP and GTP synthetic pathway in mammalian cells.
74  rapid review
(10 times)
Cell Biology
(4 times)
CI (2 times)
FN (2 times)
HTA (2 times)
2000 Detection of false negative Pap smears by rapid reviewing. A metaanalysis.
75  refractory or relapsed
(10 times)
Hematology
(6 times)
CR (4 times)
MM (4 times)
OS (3 times)
2006 Therapeutic results in patients with relapsed diffuse large B cell Non-Hodgkin's lymphoma achieving complete response only after autologous stem cell transplantation.
76  repeat-reactive
(10 times)
Hematology
(7 times)
PCR (4 times)
HTLV (3 times)
WB (3 times)
1993 Hepatitis C virus in blood samples from volunteer donors.
77  residential rehabilitation
(10 times)
Substance-Related Disorders
(8 times)
ATOS (4 times)
MT (4 times)
DTX (3 times)
2004 Attempted suicide among entrants to three treatment modalities for heroin dependence in the Australian Treatment Outcome Study (ATOS): prevalence and risk factors.
78  respiratory rehabilitation
(10 times)
Pulmonary Medicine
(7 times)
COPD (3 times)
LVRS (3 times)
6MWT (1 time)
2000 Reduction pneumoplasty versus respiratory rehabilitation in severe emphysema: a randomized study. Pulmonary Emphysema Research Group.
79  reward responsiveness
(10 times)
Psychiatry
(2 times)
BAS (2 times)
RewP (2 times)
ABCD (1 time)
2010 Event-related components of the punishment and reward sensitivity.
80  Round-Robin
(10 times)
Cybernetics
(4 times)
AP (1 time)
BRRDEs (1 time)
DTV-CCMASs (1 time)
2003 A comparison of ten different methods for the analysis of saturates, olefins, benzene, total aromatics, and oxygenates in finished gasolines.
81  radiation retinopathy
(9 times)
Neoplasms
(2 times)
OCTA (2 times)
CM (1 time)
DH (1 time)
2011 Current treatments for radiation retinopathy.
82  renal failure
(9 times)
Cardiology
(2 times)
AMI (1 time)
BMI (1 time)
BP (1 time)
1995 Prosthetic valve endocarditis in the ICU. Prognostic factors of overall survival in a series of 122 cases and consequences for treatment decision.
83  respiratory frequency
(9 times)
Critical Care
(3 times)
COPD (3 times)
HR (3 times)
MAP (3 times)
1997 Total energy expenditure in infants with bronchopulmonary dysplasia is associated with respiratory status.
84  Rhodiola rosea
(9 times)
Medicine
(2 times)
CPK (2 times)
AST (1 time)
CRP (1 time)
2005 Cordyceps sinensis- and Rhodiola rosea-based supplementation in male cyclists and its effect on muscle tissue oxygen saturation.
85  risk of major cardiovascular events
(9 times)
Medicine
(2 times)
ACS (2 times)
AF (2 times)
CI (2 times)
1996 Incidence, natural history and cardiovascular events in symptomatic and asymptomatic peripheral arterial disease in the general population.
86  risk of relapse
(9 times)
Neoplasms
(2 times)
AML (3 times)
CI (3 times)
DFS (3 times)
1989 Recent trends in allogeneic bone marrow transplantation.
87  rate-responsive
(8 times)
Cardiology
(8 times)
HR (3 times)
6MWT (1 time)
ACSM (1 time)
1989 Symptomatology and quality of life in patients with rate-responsive pacemakers: a double-blind, randomized, crossover study.
88  red rubber
(8 times)
Anesthesiology
(4 times)
PVC (6 times)
Si (3 times)
AR (1 time)
1986 Incendiary characteristics of a new laser-resistant endotracheal tube.
89  reinfarction
(8 times)
Cardiology
(6 times)
CI (6 times)
PCI (4 times)
AMI (3 times)
2012 Cardiovascular outcomes using intra-aortic balloon pump in high-risk acute myocardial infarction with or without cardiogenic shock: a meta-analysis.
90  repeated reading
(8 times)
Psychology, Educational
(4 times)
AUCi (1 time)
CBM (1 time)
EM (1 time)
1997 The effect of the method of repeated readings on the reading rate and word recognition accuracy of deaf adolescents.
91  reporter responsive
(8 times)
Neoplasms
(5 times)
RU (8 times)
BC (4 times)
SRR2 (4 times)
2014 YB-1 regulates Sox2 to coordinately sustain stemness and tumorigenic properties in a phenotypically distinct subset of breast cancer cells.
92  resuscitation room
(8 times)
Emergency Medicine
(4 times)
ED (5 times)
ICU (3 times)
CINT (2 times)
2008 Resuscitation room blood alcohol concentrations: one-year cohort study.
93  rigid registration
(8 times)
Radiotherapy
(5 times)
CBCT (3 times)
CBCTs (2 times)
CTV (2 times)
2011 Image registration of pre-procedural MRI and intra-procedural CT images to aid CT-guided percutaneous cryoablation of renal tumors.
94  risk of all-grade
(8 times)
Pharmacology
(2 times)
irAEs (2 times)
NSCLC (2 times)
CIs (1 time)
2017 Bevacizumab significantly increases the risks of hypertension and proteinuria in cancer patients: A systematic review and comprehensive meta-analysis.
95  rural areas
(8 times)
Public Health
(3 times)
RRs (2 times)
BDs (1 time)
CIs (1 time)
2011 Perinatal mortality in eastern Uganda: a community based prospective cohort study.
96  rapid recovery
(7 times)
Nursing
(2 times)
AEs (1 time)
BUN (1 time)
CCI (1 time)
2015 Rapid recovery protocols for primary total hip arthroplasty can safely reduce length of stay without increasing readmissions.
97  Rapid rescreening
(7 times)
Neoplasms
(3 times)
ASCUS (3 times)
Pap (2 times)
QC (2 times)
2004 Rapid rescreening of cervical smears by cytopathologists: experience at a WHO collaborating centre for research in cytology.
98  re-resection
(7 times)
Gastroenterology
(2 times)
OS (6 times)
RFA (5 times)
HCC (4 times)
2014 Resection of early oral squamous cell carcinoma with positive or close margins: relevance of adjuvant treatment in relation to local recurrence: margins of 3 mm as safe as 5 mm.
99  regioregularity
(7 times)
Biotechnology
(3 times)
P3HT (3 times)
NWs (2 times)
RRa (2 times)
2008 Polaron dynamics of heavily doped regioregular and regiorandom poly(3-alkylthiophenes) revealed by electron spin resonance spectroscopy.
100  repeated restraint
(7 times)
Endocrinology
(3 times)
CVS (2 times)
HPA (2 times)
PVN (2 times)
1999 Vasopressin and corticotropin-releasing hormone gene responses to novel stress in rats adapted to repeated restraint.