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Abbreviation: PFR
Appearance Frequency: 814 time(s)
Long forms: 179

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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
peak filling rate
(268 times)
Cardiology
(111 times)
LV (126 times)
PER (86 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
(64 times)
Urology
(17 times)
IPSS (11 times)
BPH (9 times)
PVR (9 times)
1966 Relationship between peak flow rate (PFR) and other tests of ventilatory capacity.
plug flow reactor
(45 times)
Biotechnology
(19 times)
CSTR (16 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
(33 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
(28 times)
Neoplasms
(24 times)
OS (14 times)
PFS (12 times)
CI (6 times)
2002 Progression-free rate as the principal end-point for phase II trials in soft-tissue sarcomas.
plain film radiography
(14 times)
Radiology
(4 times)
CT (3 times)
MRI (3 times)
DS (2 times)
1994 CT of cystic jaw lesions.
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.
Promoting First Relationships
(13 times)
Pediatrics
(6 times)
ASD (1 time)
CAN (1 time)
RSA (1 time)
2012 Promoting first relationships: randomized trial of a relationship-based intervention for toddlers in child welfare.
10  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.
11  proximal femoral replacement
(11 times)
General Surgery
(4 times)
THA (2 times)
ACS-NSQIP (1 time)
APC (1 time)
2005 Correlation of radiographic and telemetric data from massive implant fixations.
12  peak urinary flow rate
(10 times)
Urology
(8 times)
BPH (3 times)
IPSS (3 times)
PVR (3 times)
1995 Transurethral microwave thermotherapy (TUMT) for benign prostatic hyperplasia (BPH)--our first 100 cases.
13  pelvic floor rehabilitation
(9 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  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.
15  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.
16  proximal femoral resection
(8 times)
Orthopedics
(7 times)
HO (3 times)
THA (2 times)
APC (1 time)
2014 Proximal femoral resection for the painful dislocated hip in cerebral palsy: does indomethacin prevent heterotopic ossification?
17  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.
18  pelvic floor repair
(6 times)
Gynecology
(5 times)
POP (2 times)
VH (2 times)
CI (1 time)
2005 Is there a role for concomitant pelvic floor repair in patients with sphincter defects in the treatment of fecal incontinence?
19  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.
20  paraflagellar rod proteins
(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.
21  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.
22  post-fever retinitis
(5 times)
Ophthalmology
(4 times)
BCVA (1 time)
CFT (1 time)
IQR (1 time)
2020 Post-fever retinitis - Newer concepts.
23  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.
24  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.
25  photon fluence rate
(4 times)
Plants
(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.
26  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.
27  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.
28  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.
29  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.
30  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.
31  particle flow rate
(3 times)
Molecular Biology
(1 time)
ARDS (2 times)
LPS (2 times)
ECMO (1 time)
2020 Increased particle flow rate from airways precedes clinical signs of ARDS in a porcine model of LPS-induced acute lung injury.
32  phalanx-forming region
(3 times)
Science
(2 times)
IDs (2 times)
BDs (1 time)
BMP (1 time)
2008 Unique SMAD1/5/8 activity at the phalanx-forming region determines digit identity.
33  pike fry rhabdovirus
(3 times)
Virology
(1 time)
SVC (3 times)
IHN (2 times)
VHS (2 times)
1975 Infectivity of fish rhabdoviruses for Drosophila melanogaster.
34  pore-forming region
(3 times)
Neurology
(1 time)
RyR (2 times)
CSE (1 time)
DS (1 time)
2012 Dravet syndrome: seizure control and gait in adults with different SCN1A mutations.
35  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.
36  prealbumin to fibrinogen ratio
(3 times)
Clinical Laboratory Techniques
(2 times)
AUC (2 times)
ROC (2 times)
AFR (1 time)
2020 Circulating C-Reactive Protein to Prealbumin Ratio and Prealbumin to Fibrinogen Ratio are Two Promising Inflammatory Markers Associated with Disease Activity in Rheumatoid Arthritis.
37  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.
38  prescription fill rate
(3 times)
Health Services
(1 time)
MPR (3 times)
MRCI (2 times)
DM (1 time)
2007 Effect of disease management on prescription drug treatment: what is the right quality measure?
39  protein fold recognition
(3 times)
Computational Biology
(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.
40  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.
41  pupil flash response
(3 times)
Alzheimer Disease
(2 times)
AD (3 times)
AIBL (1 time)
DIAN (1 time)
2013 Pupil response biomarkers distinguish amyloid precursor protein mutation carriers from non-carriers.
42  particulate-filtering respirator
(2 times)
Vascular Diseases
(1 time)
BP (1 time)
CI (1 time)
EM (1 time)
1999 Tuberculosis exposure risk in emergency medicine residents.
43  Patient Family Relations
(2 times)
Medical Informatics Applications
(1 time)
--- 2018 Mixed-Methods Evaluation of Real-Time Safety Reporting by Hospitalized Patients and Their Care Partners: The MySafeCare Application.
44  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.
45  peptide flanking residues
(2 times)
Medical Informatics
(1 time)
APCs (1 time)
MHC-II (1 time)
1999 Immunoregulation of Th cells by naturally processed peptide antagonists.
46  perifornical region
(2 times)
Endocrinology
(1 time)
DMH (2 times)
NPY (2 times)
AgRP (1 time)
2000 Novel expression of hypothalamic neuropeptide Y during postnatal development in the rat.
47  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.
48  persistent free radicals
(2 times)
Environmental Health
(2 times)
2,4-DCP (1 time)
DTG (1 time)
FWO (1 time)
2020 Formation of persistent free radicals in biochar derived from rice straw based on a detailed analysis of pyrolysis kinetics.
49  pesticide-free rice
(2 times)
Chemistry
(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.
50  PF ratio
(2 times)
Radiology
(1 time)
PF (2 times)
CM-I (1 time)
MAN (1 time)
1995 Posterior fossa volume and response to suboccipital decompression in patients with Chiari I malformation.
51  PFS rate
(2 times)
Drug Therapy
(1 time)
AEs (2 times)
DCR (2 times)
ORR (2 times)
2019 Efficacy and safety of the VEGFR2 inhibitor Apatinib for metastatic soft tissue sarcoma: Chinese cohort data from NCT03121846.
52  phonation flow range
(2 times)
Otolaryngology
(2 times)
PIF (2 times)
PIP (2 times)
PTF (2 times)
2011 Phonation instability flow in excised canine larynges.
53  photo-Fries rearrangement
(2 times)
Chemistry
(2 times)
4-AP (1 time)
PAI (1 time)
UPLC-PDA (1 time)
2012 Mechanistic pathways of the photolysis of paracetamol in aqueous solution: an example of photo-Fries rearrangement.
54  plantar flexion resistance
(2 times)
Physiology
(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.
55  planted fixed bed reactor
(2 times)
Toxicology
(1 time)
CW (1 time)
HSSF-CW (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.
56  Pneumoconiosis Field Research
(2 times)
Occupational Medicine
(2 times)
SMRs (1 time)
2004 Dust concentrations and respiratory risks in coalminers: key risk estimates from the British Pneumoconiosis Field Research.
57  portal flow rate
(2 times)
Gastroenterology
(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.
58  procedural failure rate
(2 times)
Veterinary Medicine
(2 times)
iRA (2 times)
EA (1 time)
HIA (1 time)
2014 Comparison of epidural versus intrathecal anaesthesia in dogs undergoing pelvic limb orthopaedic surgery.
59  proportion false recent
(2 times)
Science
(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.
60  pulmonary atrial flow reversal velocity
(2 times)
Diagnostic Imaging
(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.
61  pulmonary flow restriction
(2 times)
Cardiology
(2 times)
MVP (2 times)
HLHS (1 time)
PAB (1 time)
2019 Utility of the Medtronic microvascular plug™ as a transcatheter implantable and explantable pulmonary artery flow restrictor in a swine model.
62  pump flow rates
(2 times)
Pulmonary Medicine
(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.
63  end-point was a 6-monthprogression-free rate
(1 time)
Neoplasms
(1 time)
CI (1 time)
SAE (1 time)
2019 Randomised phase II trial of trofosfamide vs. doxorubicin in elderly patients with untreated metastatic soft-tissue sarcoma.
64  function-peak ventricular filling rate
(1 time)
Diagnostic Imaging
(1 time)
ESV (1 time)
TPFR (1 time)
2011 Real time three-dimensional stress echocardiography: a new approach for assessing diastolic function.
65  mini-plug-flow reactor
(1 time)
Biotechnology
(1 time)
STR (1 time)
2009 Fast dynamic response of the fermentative metabolism of Escherichia coli to aerobic and anaerobic glucose pulses.
66  pain-free rate
(1 time)
Neurology
(1 time)
CSD (1 time)
PM (1 time)
TMS (1 time)
2011 The effect of prophylactic medications on TMS for migraine aura.
67  pair-fed
(1 time)
Physiology
(1 time)
--- 1991 Body composition and metabolic rate in rat during a continuous infusion of cachectin.
68  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.
69  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.
70  PaO:FiO ratio
(1 time)
Critical Care
(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.
71  paraflagellar rod structure
(1 time)
Eukaryotic Cells
(1 time)
--- 2005 Cryptic paraflagellar rod in endosymbiont-containing kinetoplastid protozoa.
72  Partial face recognition
(1 time)
Image Processing, Computer-Assisted
(1 time)
DFM (1 time)
FCNs (1 time)
SRC (1 time)
2018 Dynamic Feature Matching for Partial Face Recognition.
73  partial flow restriction
(1 time)
Reproduction
(1 time)
FGR (1 time)
I/R (1 time)
MPO (1 time)
2017 Fetal Growth Restriction Induced by Transient Uterine Ischemia-Reperfusion: Differential Responses in Different Mouse Strains.
74  partial footplate removal
(1 time)
Otolaryngology
(1 time)
TFR (1 time)
1984 Partial vs. total footplate removal in stapedectomy: a comparative study.
75  partial frequency redistribution
(1 time)
Chemistry
(1 time)
--- 2007 Photonic superdiffusive motion in resonance line radiation trapping Partial frequency redistribution effects.
76  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.
77  Participant-focused research
(1 time)
Social Sciences
(1 time)
--- 2000 Disseminating the results of participant-focused research.
78  particulate filler resin
(1 time)
Dentistry
(1 time)
FRC (1 time)
2005 Load bearing capacity of fibre-reinforced and particulate filler composite resin combination.
79  Partnership for the Rehabilitation Program
(1 time)
Tropical Medicine
(1 time)
INF (1 time)
2008 Partnership for rehabilitation: looking beyond impairments.
80  Pasoh Forest Reserve
(1 time)
Ecological and Environmental Phenomena
(1 time)
AHFR (2 times)
EN (1 time)
GLM (1 time)
2021 Morphometric study of Kalophrynus palmatissimus at two forest reserves in Malaysia.
81  Passion fruit rind
(1 time)
Nutritional Sciences
(1 time)
PSE (1 time)
UAE (1 time)
2017 Sequential extraction of flavonoids and pectin from yellow passion fruit rind using pressurized solvent or ultrasound.
82  patellofemoral resurfacing
(1 time)
Orthopedics
(1 time)
TKAs (1 time)
1994 Patellofemoral resurfacing at total knee arthroplasty.
83  patellofemoral retinaculum
(1 time)
Orthopedics
(1 time)
CR (1 time)
PS (1 time)
TKA (1 time)
2018 Patellofemoral Imbalance in a Balanced Total Knee Arthroplasty: How Does it Occur?
84  Pathological food refusal
(1 time)
Nutritional Sciences
(1 time)
--- 2008 Discontinuation of tube feeding in young children by hunger provocation.
85  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.
86  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.
87  pattern fraction ratio
(1 time)
Membranes
(1 time)
--- 2020 Understanding the Role of Pattern Geometry on Nanofiltration Threshold Flux.
88  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.
89  Peak Flow Rates
(1 time)
Medicine
(1 time)
--- 1977 A study of ventilatory function in 4320 adult male subjects.
90  peak force rate
(1 time)
Cardiology
(1 time)
FFR (1 time)
FG (1 time)
HR (1 time)
2010 Force-frequency relationship as a predictor of long-term prognosis in patients with heart diseases.
91  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.
92  peak rapid filling rate in early diastole
(1 time)
Vascular Diseases
(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.
93  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.
94  pediatric facility recognition
(1 time)
Pediatrics
(1 time)
EDs (1 time)
WPRS (1 time)
2019 Statewide Pediatric Facility Recognition Programs and Their Association with Pediatric Readiness in Emergency Departments in the United States.
95  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.
96  pelvic floor re-education
(1 time)
Obstetrics
(1 time)
--- 2002 Long-term efficacy of pelvic floor re-education with EMG-controlled biofeedback.
97  pelvic floor retraining
(1 time)
Gastroenterology
(1 time)
--- 1997 Prospective trial of pelvic floor retraining in patients with fecal incontinence.
98  penicillin fermentation residues
(1 time)
Environmental Health
(1 time)
ARGs (1 time)
GI (1 time)
HT-PFR (1 time)
2021 Effects of added thermally treated penicillin fermentation residues on the quality and safety of composts.
99  percentage of farmers and ranchers
(1 time)
Toxicology
(1 time)
ANP (1 time)
DEMATEL (1 time)
DTIM (1 time)
2021 Towards a flood vulnerability assessment of watershed using integration of decision-making trial and evaluation laboratory, analytical network process, and fuzzy theories.
100  perfect free recall
(1 time)
Neurology
(1 time)
--- 2010 Do children with developmental dyslexia have impairments in implicit learning?