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Abbreviation: PFR
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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
peak filling rate
(260 times)
Cardiology
(109 times)
LV (122 times)
PER (85 times)
EF (83 times)
1979 Left-ventricular peak ejection rate, filling rate, and ejection fraction--frame rate requirements at rest and exercise: concise communication.
peak flow rate
(62 times)
Urology
(17 times)
IPSS (10 times)
BPH (9 times)
PVR (8 times)
1966 Relationship between peak flow rate (PFR) and other tests of ventilatory capacity.
plug flow reactor
(42 times)
Biotechnology
(18 times)
CSTR (15 times)
STR (9 times)
BR (2 times)
1982 The production of 6-aminopenicillanic acid by a multistage tubular reactor packed with immobilized penicillin amidase.
paraflagellar rod
(32 times)
Cell Biology
(11 times)
AFM (3 times)
BSE (1 time)
CaM (1 time)
1989 The major component of the paraflagellar rod of Trypanosoma brucei is a helical protein that is encoded by two identical, tandemly linked genes.
progression-free rate
(24 times)
Neoplasms
(20 times)
OS (13 times)
PFS (10 times)
CI (6 times)
2002 Progression-free rate as the principal end-point for phase II trials in soft-tissue sarcomas.
patellofemoral replacement
(13 times)
Orthopedics
(6 times)
TKR (5 times)
MRI (2 times)
UKR (2 times)
2003 Can knees kneel? Kneeling ability after total, unicompartmental and patellofemoral knee arthroplasty.
phenol formaldehyde resin
(13 times)
Nanotechnology
(4 times)
NPs (2 times)
CNCs (1 time)
EDAC (1 time)
2002 Contact allergy to o-cresol--a sensitizer in phenol-formaldehyde resin.
plain film radiography
(13 times)
Radiology
(4 times)
CT (3 times)
DS (2 times)
MRI (2 times)
1994 CT of cystic jaw lesions.
perfusion flow rate
(12 times)
Nephrology
(4 times)
GFR (6 times)
CS (2 times)
EC (2 times)
1984 Substrate support for renal functions during hypoxia in the perfused rat kidney.
10  Promoting First Relationships
(12 times)
Pediatrics
(5 times)
ASD (1 time)
RSA (1 time)
2012 Promoting first relationships: randomized trial of a relationship-based intervention for toddlers in child welfare.
11  peak urinary flow rate
(9 times)
Urology
(7 times)
BPH (3 times)
IPSS (3 times)
PVR (3 times)
1995 Transurethral microwave thermotherapy (TUMT) for benign prostatic hyperplasia (BPH)--our first 100 cases.
12  peak expiratory flow rate
(8 times)
Medicine
(4 times)
FVC (3 times)
FEV (1 time)
MDI (1 time)
1978 Pulmonary function in normal children aged 11-15 years.
13  pelvic floor rehabilitation
(8 times)
Gynecology
(3 times)
LAR (3 times)
UI (3 times)
AE (1 time)
1999 Efficacy of pelvic floor rehabilitation for treatment of genuine stress incontinence.
14  plasma free radicals
(8 times)
Medicine
(3 times)
LDF (2 times)
CVI (1 time)
ESR (1 time)
2003 Improvement of microcirculation and healing of venous hypertension and ulcers with Crystacide. Evaluation of free radicals, laser Doppler flux and PO2. A prospective-randomized-controlled study.
15  pressure-flow relationship
(7 times)
Physiology
(4 times)
ACE (1 time)
BP (1 time)
CHF (1 time)
1985 Effects of coronary sinus pressure elevation on coronary blood flow distribution in dogs with normal preload.
16  proximal femoral resection
(7 times)
Orthopedics
(6 times)
HO (3 times)
THA (2 times)
CP (1 time)
2014 Proximal femoral resection for the painful dislocated hip in cerebral palsy: does indomethacin prevent heterotopic ossification?
17  PaO2-to-FiO2 ratio
(5 times)
Traumatology
(3 times)
SII (4 times)
ARDS (3 times)
CT (2 times)
2014 Comparison of virtual bronchoscopy to fiber-optic bronchoscopy for assessment of inhalation injury severity.
18  paraflagellar rod protein
(5 times)
Allergy and Immunology
(4 times)
PBMC (2 times)
ACP (1 time)
CCP (1 time)
2003 Humoral and cellular immune responses to Trypanosoma cruzi-derived paraflagellar rod proteins in patients with Chagas' disease.
19  parotid flow rate
(5 times)
Dentistry
(3 times)
AN (1 time)
AST (1 time)
CODS (1 time)
1987 Secondary Sjogren's syndrome in rheumatoid arthritis.
20  proximal femoral replacement
(5 times)
Orthopedics
(2 times)
APC (1 time)
DFR (1 time)
IQR (1 time)
2006 Correlation of radiographic and telemetric data from massive implant fixations.
21  Proximal fractional reabsorption
(5 times)
Medicine
(2 times)
CyA (3 times)
APR (2 times)
GFR (2 times)
1980 Dissociative effects of piretanide on proximal tubular PO4 and HCO3 transport.
22  peak early filling rate
(4 times)
Cardiology
(3 times)
LV (3 times)
AV (1 time)
MRI (1 time)
1986 Beneficial effects of atrioventricular sequential pacing on cardiac output and left ventricular filling assessed with pulsed Doppler echocardiography.
23  pelvic floor repair
(4 times)
Gynecology
(3 times)
CI (1 time)
CRADI (1 time)
CRAIQ (1 time)
2006 Is there a role for concomitant pelvic floor repair in patients with sphincter defects in the treatment of fecal incontinence?
24  photon fluence rate
(4 times)
Botany
(1 time)
DIC (2 times)
CO2 (1 time)
MFSD (1 time)
1986 Effect of Photon Fluence Rate on Oxygen Evolution and Uptake by Chlamydomonas reinhardtii Suspensions Grown in Ambient and CO(2)-Enriched Air.
25  placental folate receptor
(4 times)
Biochemistry
(3 times)
FBPs (2 times)
BFU-E (1 time)
CFU-E (1 time)
1987 Development of a specific radioimmunoassay for the placental folate receptor and related high-affinity folate binding proteins in human tissues.
26  prenatal food restriction
(4 times)
Medicine
(2 times)
HFD (3 times)
GD (2 times)
PW (2 times)
2016 Prenatal food restriction induces poor-quality articular cartilage in female rat offspring fed a post-weaning high-fat diet and its intra-uterine programming mechanisms.
27  progression-free survival rate
(4 times)
Neoplasms
(3 times)
AEs (3 times)
DCR (3 times)
PFS (3 times)
2013 An open-label, phase 2 study evaluating the efficacy and safety of the anti-IGF-1R antibody cixutumumab in patients with previously treated advanced or metastatic soft-tissue sarcoma or Ewing family of tumours.
28  Pulmonary flow reserve
(4 times)
Cardiology
(4 times)
IPAH (3 times)
ACh (2 times)
AVT (1 time)
2012 Assessment of pulmonary endothelial function during invasive testing in children and adolescents with idiopathic pulmonary arterial hypertension.
29  organophosphate flame retardant
(3 times)
Environmental Health
(2 times)
BDCIPP (2 times)
DPHP (2 times)
ip-PPP (2 times)
2015 Organophosphorous flame retardants in biota from Svalbard, Norway.
30  pike fry rhabdovirus
(3 times)
Veterinary Medicine
(1 time)
SVC (3 times)
IHN (2 times)
VHS (2 times)
1975 Infectivity of fish rhabdoviruses for Drosophila melanogaster.
31  pore-forming region
(3 times)
Medicine
(1 time)
RyR (2 times)
CSE (1 time)
DS (1 time)
2012 Dravet syndrome: seizure control and gait in adults with different SCN1A mutations.
32  posterior fossa reconstruction
(3 times)
Neurosurgery
(2 times)
CM-SM (1 time)
1994 Posterior fossa reconstruction: a surgical technique for the treatment of Chiari I malformation and Chiari I/syringomyelia complex--preliminary results and magnetic resonance imaging quantitative assessment of hindbrain migration.
33  precision-fed cecectomized rooster assay
(3 times)
Veterinary Medicine
(3 times)
SIAAD (3 times)
MBM (2 times)
PFC (2 times)
2011 Comparison of amino acid digestibility of feedstuffs determined with the precision-fed cecectomized rooster assay and the standardized ileal amino acid digestibility assay.
34  protein fold recognition
(3 times)
Medical Informatics
(2 times)
FCS (1 time)
PSSM (1 time)
SCP (1 time)
2014 A Segmentation-Based Method to Extract Structural and Evolutionary Features for Protein Fold Recognition.
35  protein/fat ratio
(3 times)
Veterinary Medicine
(3 times)
DA (1 time)
1998 An evaluation of protein/fat ratio in first DHI test milk for prediction of subsequent displaced abomasum in dairy cows.
36  pupil flash response
(3 times)
Neurology
(2 times)
AD (3 times)
AIBL (1 time)
DIAN (1 time)
2013 Pupil response biomarkers distinguish amyloid precursor protein mutation carriers from non-carriers.
37  Patient Family Relations
(2 times)
Medical Errors
(1 time)
--- 2017 Towards Analytics of the Patient and Family Perspective: A Case Study and Recommendations for Data Capture of Safety and Quality Concerns.
38  peak frequency ratio
(2 times)
Diagnostic Imaging
(1 time)
CW/SA (1 time)
PD/SA (1 time)
1982 Evaluation of the peak frequency ratio (PFR) measurement in the detection of internal carotid artery stenosis.
39  peptide flanking residues
(2 times)
Allergy and Immunology
(1 time)
APCs (1 time)
MHC-II (1 time)
1999 Immunoregulation of Th cells by naturally processed peptide antagonists.
40  perifornical region
(2 times)
Neurology
(1 time)
DMH (2 times)
NPY (2 times)
AgRP (1 time)
2000 Novel expression of hypothalamic neuropeptide Y during postnatal development in the rat.
41  periodic fluid redistribution
(2 times)
Physiology
(2 times)
ACS (2 times)
HKS (2 times)
HDT (1 time)
2015 Bone density benefits with periodic fluid redistribution during diminished muscular activity in humans.
42  pesticide-free rice
(2 times)
Food
(1 time)
CR (2 times)
OR (2 times)
2018 Analysis of Selected Phenolic Compounds in Organic, Pesticide-Free, Conventional Rice (Oryza sativa L.) Using LC-ESI-MS/MS.
43  PF ratio
(2 times)
Neurosurgery
(1 time)
PF (2 times)
CMI (1 time)
MAN (1 time)
1995 Posterior fossa volume and response to suboccipital decompression in patients with Chiari I malformation.
44  phalanx-forming region
(2 times)
Science
(2 times)
BDs (1 time)
BMP (1 time)
DC (1 time)
2008 Unique SMAD1/5/8 activity at the phalanx-forming region determines digit identity.
45  phonation flow range
(2 times)
Otolaryngology
(2 times)
PIF (2 times)
PIP (2 times)
PTF (2 times)
2012 Phonation instability flow in excised canine larynges.
46  photo-Fries rearrangement
(2 times)
Chemistry
(2 times)
4-AP (1 time)
PAI (1 time)
UPLC-PDA (1 time)
2013 Mechanistic pathways of the photolysis of paracetamol in aqueous solution: an example of photo-Fries rearrangement.
47  plantar flexion resistance
(2 times)
Biomedical Engineering
(1 time)
AFO (2 times)
MGAS (1 time)
TA (1 time)
2018 Estimation of compressive tibiofemoral force using over resistance of ankle-foot orthosis on gait.
48  planted fixed bed reactor
(2 times)
Environmental Health
(1 time)
CW (1 time)
HSSFCW (1 time)
2015 Field application of a planted fixed bed reactor (PFR) for support media and rhizosphere investigation using undisturbed samples from full-scale constructed wetlands.
49  Pneumoconiosis Field Research
(2 times)
Environmental Health
(2 times)
SMRs (1 time)
2004 Dust concentrations and respiratory risks in coalminers: key risk estimates from the British Pneumoconiosis Field Research.
50  portal flow rate
(2 times)
Diagnostic Imaging
(1 time)
BH (1 time)
DDI (1 time)
GE (1 time)
1996 Respiratory and postprandial changes in portal flow rate: assessment by phase contrast MR imaging.
51  procedural failure rate
(2 times)
Veterinary Medicine
(2 times)
iRA (2 times)
EA (1 time)
HIA (1 time)
2015 Comparison of epidural versus intrathecal anaesthesia in dogs undergoing pelvic limb orthopaedic surgery.
52  proportion false recent
(2 times)
Epidemiology
(1 time)
LAg (2 times)
MDRI (1 time)
ODn (1 time)
2015 Recalibration of the limiting antigen avidity EIA to determine mean duration of recent infection in divergent HIV-1 subtypes.
53  pulmonary atrial flow reversal velocity
(2 times)
Cardiology
(2 times)
DT (2 times)
IVRT (2 times)
Vp (2 times)
2002 Color M-mode flow propagation velocity versus conventional Doppler indices in the assessment of diastolic left ventricular function in patients on chronic hemodialysis.
54  pump flow rate
(2 times)
General Surgery
(2 times)
HCPB (1 time)
LVAS (1 time)
1993 Effect of altering pump flow rate on cerebral blood flow and metabolism in infants and children.
55  end-point was a 6-monthprogression-free rate
(1 time)
Neoplasms
(1 time)
CI (1 time)
SAE (1 time)
2020 Randomised phase II trial of trofosfamide vs. doxorubicin in elderly patients with untreated metastatic soft-tissue sarcoma.
56  function-peak ventricular filling rate
(1 time)
Cardiology
(1 time)
ESV (1 time)
TPFR (1 time)
2011 Real time three-dimensional stress echocardiography: a new approach for assessing diastolic function.
57  mini-plug-flow reactor
(1 time)
Biomedical Engineering
(1 time)
STR (1 time)
2009 Fast dynamic response of the fermentative metabolism of Escherichia coli to aerobic and anaerobic glucose pulses.
58  pain-free rate
(1 time)
Neurology
(1 time)
CSD (1 time)
PM (1 time)
TMS (1 time)
2010 The effect of prophylactic medications on TMS for migraine aura.
59  pair-fed
(1 time)
Physiology
(1 time)
--- 1991 Body composition and metabolic rate in rat during a continuous infusion of cachectin.
60  palpebral fissure ratio
(1 time)
Reconstructive Surgical Procedures
(1 time)
OVR (1 time)
2016 The Correlation between the Orbital Volume Ratio and Enophthalmos in Unoperated Blowout Fractures.
61  pancreatic flow output rate
(1 time)
Gastroenterology
(1 time)
CP (1 time)
ELISA (1 time)
FE-1 (1 time)
2013 Quantification of pancreatic exocrine function of chronic pancreatitis with secretin-enhanced MRCP.
62  PaO₂:FiO₂ ratio
(1 time)
Cardiology
(1 time)
HRF (1 time)
RSBI (1 time)
2010 Value of the PaO₂:FiO₂ ratio and Rapid Shallow Breathing Index in predicting successful extubation in hypoxemic respiratory failure.
63  paraflagellar rod structure
(1 time)
Molecular Biology
(1 time)
--- 2005 Cryptic paraflagellar rod in endosymbiont-containing kinetoplastid protozoa.
64  Partial face recognition
(1 time)
Medical Informatics
(1 time)
DFM (1 time)
FCNs (1 time)
SRC (1 time)
2018 Dynamic Feature Matching for Partial Face Recognition.
65  partial flow restriction
(1 time)
Reproductive Medicine
(1 time)
FGR (1 time)
I/R (1 time)
MPO (1 time)
2018 Fetal Growth Restriction Induced by Transient Uterine Ischemia-Reperfusion: Differential Responses in Different Mouse Strains.
66  partial footplate removal
(1 time)
Otolaryngology
(1 time)
TFR (1 time)
1984 Partial vs. total footplate removal in stapedectomy: a comparative study.
67  partial frequency redistribution
(1 time)
Biophysics
(1 time)
--- 2007 Photonic superdiffusive motion in resonance line radiation trapping Partial frequency redistribution effects.
68  partially feed restricted
(1 time)
Nutritional Sciences
(1 time)
cADPR (1 time)
ND (1 time)
PF (1 time)
2007 Water maze performance in young male Long-Evans rats is inversely affected by dietary intakes of niacin and may be linked to levels of the NAD+ metabolite cADPR.
69  Participant-focused research
(1 time)
Nursing
(1 time)
--- 1999 Disseminating the results of participant-focused research.
70  particle flow rate
(1 time)
Pulmonary Medicine
(1 time)
ARDS (1 time)
LPS (1 time)
2020 Increased particle flow rate from airways precedes clinical signs of ARDS in a porcine model of LPS-induced acute lung injury.
71  particulate filler resin
(1 time)
Dentistry
(1 time)
FRC (1 time)
2006 Load bearing capacity of fibre-reinforced and particulate filler composite resin combination.
72  particulate filtration respirator
(1 time)
Emergency Medicine
(1 time)
EM (1 time)
NIOSH (1 time)
PPD (1 time)
1999 Tuberculosis exposure risk in emergency medicine residents.
73  Partnership for the Rehabilitation Program
(1 time)
Tropical Medicine
(1 time)
INF (1 time)
2008 Partnership for rehabilitation: looking beyond impairments.
74  Passion fruit rind
(1 time)
Nutritional Sciences
(1 time)
PSE (1 time)
UAE (1 time)
2018 Sequential extraction of flavonoids and pectin from yellow passion fruit rind using pressurized solvent or ultrasound.
75  patellofemoral resurfacing
(1 time)
Orthopedics
(1 time)
TKAs (1 time)
1994 Patellofemoral resurfacing at total knee arthroplasty.
76  patellofemoral retinaculum
(1 time)
General Surgery
(1 time)
CR (1 time)
PS (1 time)
TKA (1 time)
2019 Patellofemoral Imbalance in a Balanced Total Knee Arthroplasty: How Does it Occur?
77  Pathological food refusal
(1 time)
Gastroenterology
(1 time)
--- 2008 Discontinuation of tube feeding in young children by hunger provocation.
78  patient failure rate
(1 time)
Dentistry
(1 time)
IFR (1 time)
OMIs (1 time)
2016 Failure of Orthodontic Mini-implants by Patient Age, Sex, and Arch; Number of Primary Insertions; and Frequency of Reinsertions After Failure: An Analysis of the Implant Failure Rate and Patient Failure Rate.
79  patients and families rights
(1 time)
Medical Informatics
(1 time)
ACC (1 time)
AOP (1 time)
ASC (1 time)
2013 External Evaluation of Four Hospitals According to Patient-centred Care Standards.
80  peak diastolic filling rates
(1 time)
Nuclear Medicine
(1 time)
CAD (1 time)
LV (1 time)
RNA (1 time)
1982 Resting early peak diastolic filling rate: a sensitive index of myocardial dysfunction in patients with coronary artery disease.
81  Peak Flow Rates
(1 time)
Medicine
(1 time)
--- 1977 A study of ventilatory function in 4320 adult male subjects.
82  peak force rate
(1 time)
Cardiology
(1 time)
FFR (1 time)
FG (1 time)
HR (1 time)
2011 Force-frequency relationship as a predictor of long-term prognosis in patients with heart diseases.
83  peak left ventricular filling rate
(1 time)
Pharmacology
(1 time)
DBP (1 time)
EDBVI (1 time)
EF (1 time)
1986 Effects of oral nisoldipine in ischemic heart disease. A radioisotopic study.
84  peak rapid filling rate in early diastole
(1 time)
Cardiology
(1 time)
LV (1 time)
tau (1 time)
1994 Heart rate and force-frequency effects on diastolic function of the left ventricle in exercising dogs.
85  peak RV filling
(1 time)
Diagnostic Imaging
(1 time)
CE (1 time)
P-V (1 time)
RV (1 time)
2005 Angiocardiographic pressure volume loops in the analysis of right ventricular function after repair of tetralogy of Fallot.
86  pediatric facility recognition
(1 time)
Pediatrics
(1 time)
EDs (1 time)
WPRS (1 time)
2020 Statewide Pediatric Facility Recognition Programs and Their Association with Pediatric Readiness in Emergency Departments in the United States.
87  pelvic fat ratio
(1 time)
Medicine
(1 time)
BMI (1 time)
MFR (1 time)
PFA (1 time)
2016 The impact of general/visceral obesity on completion of mesorectum and perioperative outcomes of laparoscopic TME for rectal cancer: A STARD-compliant article.
88  pelvic floor re-education
(1 time)
Gynecology
(1 time)
--- 2002 Long-term efficacy of pelvic floor re-education with EMG-controlled biofeedback.
89  pelvic floor retraining
(1 time)
Gastroenterology
(1 time)
--- 1997 Prospective trial of pelvic floor retraining in patients with fecal incontinence.
90  perfect free recall
(1 time)
Neurology
(1 time)
--- 2010 Do children with developmental dyslexia have impairments in implicit learning?
91  performance feedback reporting
(1 time)
Behavioral Sciences
(1 time)
BHCs (1 time)
BI (1 time)
PCP (1 time)
2019 Application of System Dynamics to Inform a Model of Adolescent SBIRT Implementation in Primary Care Settings.
92  periapical film radiograph
(1 time)
Dentistry
(1 time)
CBCT (1 time)
DPR (1 time)
PLs (1 time)
2013 Impact of three radiographic methods in the outcome of nonsurgical endodontic treatment: a five-year follow-up.
93  pericardial friction rub
(1 time)
Heart Diseases
(1 time)
--- 2001 Friction and fluid: correlating pericardial effusion and pericardial friction rub.
94  peripheral flanking residues
(1 time)
Biology
(1 time)
cHABPs (1 time)
MHC (1 time)
2017 Conserved Binding Regions Provide the Clue for Peptide-Based Vaccine Development: A Chemical Perspective.
95  perivascular fibrosis ratio
(1 time)
Cardiology
(1 time)
CVF (1 time)
HF (1 time)
LV (1 time)
2012 Coronary perivascular fibrosis is associated with impairment of coronary blood flow in patients with non-ischemic heart failure.
96  persistent free radicals
(1 time)
Environmental Health
(1 time)
DTG (1 time)
FWO (1 time)
KAS (1 time)
2020 Formation of persistent free radicals in biochar derived from rice straw based on a detailed analysis of pyrolysis kinetics.
97  Person fit residual
(1 time)
CA (1 time)
HRQoL (1 time)
IFR (1 time)
2020 Psychometric evaluation of the modified 19-item Bengali version of WHOQOL scale using Rasch analysis: a cross-sectional study of a rural district in Bangladesh.
98  PFS rate
(1 time)
Biology
(1 time)
AEs (1 time)
DCR (1 time)
ORR (1 time)
2020 Efficacy and safety of the VEGFR2 inhibitor Apatinib for metastatic soft tissue sarcoma: Chinese cohort data from NCT03121846.
99  phloretin, ferulic acid and resveratrol
(1 time)
Dentistry
(1 time)
AO (1 time)
BrdU (1 time)
EtOH (1 time)
2012 Bioactive polyphenol antioxidants protect oral fibroblasts from ROS-inducing agents.
100  phonational frequency range
(1 time)
Audiology
(1 time)
AVC (1 time)
SFF (1 time)
1994 Longitudinal research on adolescent voice change in males.