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Abbreviation: PCA
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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
principal component analysis
(16617 times)
Environmental Health
(2353 times)
PLS-DA (709 times)
HCA (699 times)
PLS (562 times)
1975 Repeatability of Principal Components in Samples: Normal and Non-Normal Data Sets Compared.
patient-controlled analgesia
(1970 times)
Anesthesiology
(669 times)
VAS (322 times)
PONV (77 times)
NRS (63 times)
1982 Patient-controlled analgesia: a new concept of postoperative pain relief.
posterior cerebral artery
(753 times)
Neurology
(265 times)
MCA (175 times)
ACA (102 times)
ICA (77 times)
1977 The angiographic diagnosis of occlusions of the posterior cerebral artery.
passive cutaneous anaphylaxis
(710 times)
Pharmacology
(240 times)
IgE (42 times)
OVA (38 times)
DSCG (35 times)
1957 Passive cutaneous anaphylaxis (PCA) in the guinea pig; an immunologic and pathologic study.
procoagulant activity
(421 times)
Hematology
(108 times)
TF (108 times)
LPS (57 times)
PS (37 times)
1976 Procoagulant and platelet aggregating properties of antilymphocyte sera.
p-chloroamphetamine
(338 times)
Pharmacology
(124 times)
5-HT (40 times)
PCPA (32 times)
5-HIAA (31 times)
1975 Long-term effects of p-chloroamphetamine and related drugs on central serotonergic mechanisms.
protocatechuic acid
(274 times)
Nutritional Sciences
(44 times)
ROS (14 times)
GA (12 times)
CA (10 times)
1986 Interaction of bovine renal mitochondrial cytochrome P-450 with antioxidants.
posterior cricoarytenoid
(270 times)
Otolaryngology
(143 times)
TA (78 times)
CT (56 times)
RLN (49 times)
1975 Localization of laryngeal motor neurons in the kitten.
posterior cortical atrophy
(263 times)
Neurology
(173 times)
AD (90 times)
tAD (27 times)
CSF (14 times)
1991 Alzheimer's disease in a patient with posterior cortical atrophy.
10  phenazine-1-carboxylic acid
(253 times)
Microbiology
(66 times)
Plt (15 times)
PYO (13 times)
SC (13 times)
1966 The N-terminal sequence of the heavy chain of rabbit immunoglobulin IgG.
11  postconceptional age
(223 times)
Pediatrics
(99 times)
GA (24 times)
PNA (14 times)
NICU (11 times)
1977 Specific airway conductance in relation to postconceptional age during infancy.
12  portacaval anastomosis
(125 times)
Gastroenterology
(33 times)
HE (13 times)
5-HT (5 times)
CBF (5 times)
1974 [Influence of protocaval anastomosis (PCA) on the activity of cytoplasmtic, mitochondrial and microsomal enzymes in the normal and cirrhotic rat-liver].
13  perchloric acid
(113 times)
Biochemistry
(19 times)
TCA (10 times)
CEA (8 times)
NMR (7 times)
1976 Loss of ATP in micromolar amounts after perchloric acid treatment.
14  posterior ciliary artery
(84 times)
Ophthalmology
(57 times)
CRA (58 times)
OA (51 times)
RI (40 times)
1978 Fibrinolytic properties of some optic nerve vessels.
15  pentachloroanisole
(83 times)
Environmental Health
(31 times)
PCP (18 times)
CHX (16 times)
TeCA (13 times)
1978 Mass fragmentographic determination of pentachlorophenol in rainbow trout.
16  posterior condylar angle
(80 times)
Orthopedics
(47 times)
TKA (33 times)
TEA (21 times)
CT (14 times)
2003 Computed tomographic study of the posterior condylar angle in arthritic knees: its use in the rotational positioning of the femoral implant of total knee prostheses.
17  parietal cell antibodies
(77 times)
Gastroenterology
(19 times)
ANA (8 times)
IFA (6 times)
PA (6 times)
1975 Effect of prolonged administration of homologous and heterologous intrinsic factor antibodies on the parietal and peptic cell masses and the secretory function of the rat gastric mucosa.
18  protein-fragment complementation assay
(74 times)
Biochemistry
(19 times)
PPIs (13 times)
DHFR (5 times)
FRET (4 times)
2001 Fast selection of antibodies without antigen purification: adaptation of the protein fragment complementation assay to select antigen-antibody pairs.
19  principal component
(66 times)
Environmental Health
(16 times)
HCA (4 times)
MD (4 times)
LDA (3 times)
1996 Detection of metal contamination in wild asparagus near a waste disposal site.
20  porous-coated anatomic
(61 times)
Orthopedics
(43 times)
THA (5 times)
UHMWPE (2 times)
ABI (1 time)
1986 Histologic and microradiographic analysis of a revised porous-coated anatomic (PCA) patellar component. A case report.
21  protocatechuate
(56 times)
Microbiology
(17 times)
3MGA (5 times)
PDC (4 times)
4HB (3 times)
1979 Catabolism of protocatechuate by Bacillus macerans.
22  percutaneous cryoablation
(55 times)
Urology
(25 times)
RCC (14 times)
LCA (7 times)
CT (6 times)
2009 Ablative therapies in the treatment of small renal tumors: how far from standard of care?
23  plate count agar
(47 times)
Nutritional Sciences
(25 times)
TSA (4 times)
LAB (3 times)
MA (3 times)
1963 EFFECT OF SODIUM CHLORIDE CONCENTRATION IN AN AGAR MEDIUM ON GROWTH OF HEAT-SHOCKED STAPHYLOCOCCUS AUREUS.
24  prostatic carcinoma
(38 times)
Urology
(13 times)
BPH (17 times)
PSA (6 times)
PIN (3 times)
1982 Plasma steroids in benign prostatic hypertrophy and carcinoma of the prostate.
25  Protocatechualdehyde
(31 times)
Pharmacology
(7 times)
ROS (4 times)
Bcl-2 (2 times)
HUVECs (2 times)
2004 Inhibition of tyrosinase by protocatechuic aldehyde.
26  Primary cutaneous amyloidosis
(27 times)
Dermatology
(14 times)
CK (2 times)
FPCA (2 times)
NPL (2 times)
1997 Detection of Epstein-Barr virus in primary cutaneous amyloidosis.
27  posterior corneal astigmatism
(25 times)
Ophthalmology
(16 times)
ACA (10 times)
TCA (10 times)
IOL (6 times)
2013 Ocular residual astigmatism and topographic disparity vector indexes in normal healthy eyes.
28  photocatalytic activity
(23 times)
Environmental Health
(6 times)
NPs (5 times)
MB (3 times)
SEM (3 times)
2011 Development of multiplexed analysis for the photocatalytic activities of nanoparticles in aqueous suspension.
29  potato carrot agar
(22 times)
Microbiology
(2 times)
ITS (15 times)
PDA (14 times)
MEA (3 times)
2005 First Report of Phoma exigua var. heteromorpha Causing Oleander Dieback in Spain.
30  parietal cell
(20 times)
Endocrinology
(5 times)
ANA (6 times)
TPO (3 times)
AAA (2 times)
1982 Organ-specific antibodies in healthy and diabetic children and young adults.
31  porcine coronary artery
(20 times)
Pharmacology
(10 times)
NO (3 times)
AA (2 times)
BK (2 times)
1994 Endothelium-dependent relaxation to arachidonic acid in porcine coronary artery: is there a fourth pathway?
32  Pavlovian conditioned approach
(18 times)
Behavioral Sciences
(8 times)
CS (3 times)
US (3 times)
ANI (2 times)
2007 Post-training, but not post-reactivation, administration of amphetamine and anisomycin modulates Pavlovian conditioned approach.
33  primary cicatricial alopecia
(18 times)
Dermatology
(11 times)
LPP (5 times)
FD (3 times)
eHFSC (2 times)
2008 Hair loss as a result of cutaneous autoimmunity: frontiers in the immunopathogenesis of primary cicatricial alopecia.
34  prothrombin complex activity
(17 times)
Pharmacology
(14 times)
INR (3 times)
2,6-DIP (1 time)
AA (1 time)
1982 Evaluation of a computer-assisted method for individualized anticoagulation: retrospective and prospective studies with a pharmacodynamic model.
35  parent-child aggression
(16 times)
Pediatrics
(9 times)
IPA (4 times)
SIP (3 times)
IPV (2 times)
2015 Multimethod prediction of physical parent-child aggression risk in expectant mothers and fathers with Social Information Processing theory.
36  posterior cerebral
(16 times)
Neurology
(6 times)
MCA (7 times)
ACA (5 times)
BA (5 times)
1986 Surgical anatomy of the arteries of the posterior fossa.
37  patient-controlled intravenous analgesia
(15 times)
Anesthesiology
(6 times)
VAS (4 times)
PCEA (3 times)
ASA (2 times)
2000 [Continuous peridural analgesia vs patient - controlled intravenous analgesia for pain therapy after thoracotomy].
38  precipitation with a compressed antisolvent
(14 times)
Pharmacology
(9 times)
PLLA (4 times)
DSC (3 times)
PLA (2 times)
1998 Process variable implications for residual solvent removal and polymer morphology in the formation of gentamycin-loaded poly (L-lactide) microparticles.
39  procainamide
(14 times)
Pharmacology
(5 times)
MCA (2 times)
14C-NAPA (1 time)
2-AB (1 time)
1976 The renal elimination of procainamide.
40  pulse contour analysis
(14 times)
Cardiology
(5 times)
CO (6 times)
TPTD (4 times)
CI (2 times)
2006 Non-invasive assessment of endothelial function: which technique?
41  probabilistic cellular automata
(13 times)
Statistics as Topic
(3 times)
SIR (2 times)
BPCA (1 time)
CA (1 time)
1992 A parallel network for visual cognition.
42  percutaneous coronary angioplasty
(12 times)
Cardiology
(3 times)
AMI (4 times)
ECG (2 times)
MCG (2 times)
1985 [Emergency cardiac pacing via a coronary vessel during percutaneous coronary angioplasty].
43  photoconductive antenna
(12 times)
Optics and Photonics
(9 times)
THz (9 times)
LTG (2 times)
CW (1 time)
2012 Enhancement of terahertz pulse emission by optical nanoantenna.
44  protein complementation assay
(12 times)
Virology
(2 times)
BRET (2 times)
alphaRep (1 time)
CHIKV (1 time)
2006 Common and specific properties of herpesvirus UL34/UL31 protein family members revealed by protein complementation assay.
45  pancarpal arthrodesis
(11 times)
Veterinary Medicine
(11 times)
CLP (3 times)
HDCP (3 times)
MUVTH (2 times)
2008 Long-term assessment of pancarpal arthrodesis performed on working dogs in New Zealand.
46  percent cortical area
(11 times)
Orthopedics
(3 times)
CA (3 times)
CCT (2 times)
ALS (1 time)
1982 Age, sex and bilateral variability in cortical bone loss and measurements of the second metacarpal.
47  portable clinical analyzer
(11 times)
Veterinary Medicine
(4 times)
DI (1 time)
ED (1 time)
Hct (1 time)
1993 The evaluation of a portable clinical analyzer in the emergency department.
48  penicillamine
(10 times)
Gastroenterology
(2 times)
WD (6 times)
9.4T MRI (1 time)
ALT (1 time)
1980 D-penicillamine: its actions on lead transport in bone organ culture.
49  phenylcyclohexylamine
(10 times)
Pharmacology
(6 times)
NMDA (4 times)
MES (3 times)
PCDE (2 times)
1984 N-allyl analogues of phencyclidine: chemical synthesis and pharmacological properties.
50  patient-controlled
(9 times)
Anesthesiology
(5 times)
VAS (2 times)
ERPs (1 time)
MPQ (1 time)
1994 Pre-emptive lumbar epidural anaesthesia reduces postoperative pain and patient-controlled morphine consumption after lower abdominal surgery.
51  Postpartum cerebral angiopathy
(9 times)
Neurology
(6 times)
TCD (2 times)
CT (1 time)
IVIG (1 time)
2002 Post-partum cerebral angiopathy: repetitive TCD, MRI, MRA, and EEG examinations.
52  protein C activator
(9 times)
Hematology
(4 times)
AAV (2 times)
APC (2 times)
APTT (2 times)
1988 Characterisation and some properties of the protein C activator from Agkistrodon Contortrix Contortrix venom.
53  3-carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy
(8 times)
Pharmacology
(4 times)
EPR (5 times)
SC (3 times)
CMS (2 times)
1997 In vitro/in vivo comparison of drug release and polymer erosion from biodegradable P(FAD-SA) polyanhydrides--a noninvasive approach by the combined use of electron paramagnetic resonance spectroscopy and nuclear magnetic resonance imaging.
54  Pancreatic adenocarcinoma
(8 times)
Neoplasms
(6 times)
CI (2 times)
IGF-IR (2 times)
BPL (1 time)
2006 Expression and regulatory role of GAIP-interacting protein GIPC in pancreatic adenocarcinoma.
55  person-centred approach
(8 times)
Health Services Research
(3 times)
CBA (2 times)
EPDS (2 times)
CBT (1 time)
2009 Psychological interventions for postnatal depression: cluster randomised trial and economic evaluation. The PoNDER trial.
56  polymerase chain assembly
(8 times)
Biotechnology
(3 times)
EPCR (1 time)
mTAS (1 time)
PCR (1 time)
2007 Rational de novo gene synthesis by rapid polymerase chain assembly (PCA) and expression of endothelial protein-C and thrombin receptor genes.
57  post-cardiac arrest
(8 times)
Emergency Medicine
(4 times)
ROSC (2 times)
TH (2 times)
TTM (2 times)
2009 Serum glial fibrillary acidic protein as a predictive biomarker of neurological outcome after cardiac arrest.
58  posterior cervical angle
(8 times)
Obstetrics
(7 times)
CL (7 times)
BS (3 times)
CI (2 times)
2010 Outcome of induction of labour using maternal characteristics, ultrasound assessment and biochemical state of the cervix.
59  primary cardiac arrest
(8 times)
Vascular Diseases
(2 times)
OR (3 times)
MI (2 times)
AMI (1 time)
1982 Physical activity and primary cardiac arrest.
60  pericallosal artery
(7 times)
Radiology
(2 times)
SAH (2 times)
ACA (1 time)
ACoA (1 time)
1989 Cardiac determinants of cerebral blood flow during extracorporeal membrane oxygenation.
61  phase contrast angiography
(7 times)
Radiology
(2 times)
MRA (2 times)
MRI (2 times)
ADC (1 time)
1995 Cine phase contrast angiography of normal and diseased peripheral arteries. Preliminary results.
62  palivizumab-competitive antibody
(6 times)
Allergy and Immunology
(3 times)
RSV (5 times)
MN (2 times)
DCA (1 time)
2014 An insect cell derived respiratory syncytial virus (RSV) F nanoparticle vaccine induces antigenic site II antibodies and protects against RSV challenge in cotton rats by active and passive immunization.
63  patient-controlled admission
(6 times)
Health Services Research
(3 times)
MHPs (1 time)
TAU (1 time)
2017 Use of patient-controlled psychiatric hospital admissions: mental health professionals' perspective.
64  pentachloroethane
(6 times)
Environmental Health
(5 times)
1,1,2,2-TeCA (3 times)
HCA (3 times)
1,1,1,2-TeCA (2 times)
2001 Transformation of chlorinated aliphatic compounds by ferruginous smectite.
65  percutaneous renal access
(6 times)
Urology
(3 times)
PCNL (2 times)
PGTs (2 times)
AR (1 time)
2015 Assessment of percutaneous renal access skills during Urology Objective Structured Clinical Examinations (OSCE).
66  Phonological Components Analysis
(6 times)
Speech-Language Pathology
(4 times)
SFA (3 times)
IT (1 time)
ST (1 time)
2012 A comparison of semantic feature analysis and phonological components analysis for the treatment of naming impairments in aphasia.
67  poly citric acid
(6 times)
Nanotechnology
(2 times)
PEG (3 times)
AM (1 time)
Am-CUR (1 time)
2010 Poly(citric acid)-block-poly(ethylene glycol) copolymers--new biocompatible hybrid materials for nanomedicine.
68  polycaffeic acid
(6 times)
Biotechnology
(2 times)
AFM (1 time)
AP (1 time)
ATR-FTIR (1 time)
2019 An electrochemical sensor based on electro-polymerization of caffeic acid and Zn/Ni-ZIF-8-800 on glassy carbon electrode for the sensitive detection of acetaminophen.
69  posterior communicating artery
(6 times)
Medicine
(1 time)
5-HT (1 time)
ACA (1 time)
GOS (1 time)
1979 Analysis of the contractile effect of 5-hydroxytryptamine on the isolated posterior communicating artery of the cat.
70  Primary cutaneous aspergillosis
(6 times)
Medicine
(3 times)
HCs (1 time)
NICU (1 time)
NICUs (1 time)
2005 Primary cutaneous aspergillosis (PCA)--a case report.
71  probe competition assay
(6 times)
Sexually Transmitted Diseases
(2 times)
RLU (3 times)
CZ (1 time)
MNYC (1 time)
1994 Evaluation of the Gen-Probe PACE 2 and the Microtrak enzyme immunoassay for diagnosis of Chlamydia trachomatis in urogenital samples.
72  patient-controlled analgesia with morphine
(5 times)
Anesthesiology
(4 times)
IVN (2 times)
FNB (1 time)
FNBs (1 time)
2002 Multimodal analgesia and intravenous nutrition preserves total body protein following major upper gastrointestinal surgery.
73  patient-controlled pump
(5 times)
Anesthesiology
(3 times)
CTG (1 time)
M6G (1 time)
MLAEPs (1 time)
1990 Reduction of postoperative morbidity following patient-controlled morphine.
74  perceived cognitive ability
(5 times)
Neoplasms
(4 times)
PCI (5 times)
FACT-Cog (4 times)
BCS (2 times)
2014 Perceived cognitive function in breast cancer survivors: evaluating relationships with objective cognitive performance and other symptoms using the functional assessment of cancer therapy-cognitive function instrument.
75  percentage close agreement
(5 times)
Rheumatology
(2 times)
PEA (3 times)
CAIT (1 time)
CR (1 time)
2012 Manual testing for ankle instability.
76  personal care attendant
(5 times)
Geriatrics
(2 times)
AIN (1 time)
HCBS (1 time)
MFP (1 time)
1989 Personal care attendants and severely disabled adults: attributions for relationship outcomes.
77  portacaval shunt
(5 times)
Medicine
(2 times)
--- 1976 Acid-base status in liver cirrhosis. Disturbances in stable, terminal and portal-caval shunted patients.
78  positive classification advantage
(5 times)
Neurology
(3 times)
ERPs (2 times)
RTs (2 times)
EEG (1 time)
2013 Mapping the time course of the positive classification advantage: an ERP study.
79  PreCancer Atlas
(5 times)
Neoplasms
(4 times)
AACR (1 time)
CHIP (1 time)
FAP (1 time)
2017 Precancer Atlas to Drive Precision Prevention Trials.
80  Prescription Cost Analysis
(5 times)
Medicine
(2 times)
23vPPV (1 time)
CPRD (1 time)
GPRD (1 time)
2006 Pneumococcal polysaccharide vaccine uptake in England, 1989-2003, prior to the introduction of a vaccination programme for older adults.
81  primary component analysis
(5 times)
Biotechnology
(1 time)
CF (1 time)
CRP (1 time)
CWT (1 time)
2005 The fetal electrocardiogram by independent component analysis and wavelets.
82  principal factor analysis
(5 times)
Environmental Health
(2 times)
CFA (1 time)
EDI (1 time)
FRI (1 time)
2003 [Study of quantitative calibration model suitability in near-infrared spectroscopy analysis].
83  procaine
(5 times)
Neoplasms
(3 times)
HCC (1 time)
miRNAs (1 time)
NSCLC (1 time)
2007 Procaine inhibits the proliferation and DNA methylation in human hepatoma cells.
84  pyrrolidone carboxylate
(5 times)
Drug Therapy
(1 time)
IGA (1 time)
Mf (1 time)
NSC (1 time)
1995 Effect of pyrrolidone carboxylate (PCA) and pyridoxine on liver metabolism during chronic ethanol intake in rats.
85  anti-parietal cell
(4 times)
Medicine
(2 times)
AMA (3 times)
ANA (2 times)
SMA (2 times)
1990 Non-organ specific & organ specific antibodies in rheumatoid arthritis.
86  papillary carcinoma
(4 times)
Pathology
(2 times)
FCA (2 times)
ACA (1 time)
FA (1 time)
1999 Diagnostic value of qualitative and quantitative variables in thyroid lesions.
87  paraneoplastic cerebellar ataxia
(4 times)
Neurology
(2 times)
N-PCA (2 times)
LEMS (1 time)
2003 [Clinical presentation of immune mediated cerebellar ataxia].
88  patch-clamp amplifier
(4 times)
Brain
(1 time)
DAQ (1 time)
kEFS (1 time)
SCS (1 time)
2007 Designing a Signal Conditioning System with Software Calibration for Resistor-feedback Patch Clamp Amplifier.
89  Patient Compensation Association
(4 times)
Traumatology
(1 time)
AFC (1 time)
DPC (1 time)
DPIC (1 time)
2015 Medication errors detected in non-traditional databases: types of errors in methotrexate dosing as listed in four different Danish registers.
90  persistent CA
(4 times)
Diagnostic Imaging
(2 times)
CA (3 times)
LV (2 times)
PIM (2 times)
2006 Percent infarct mapping: an R1-map-based CE-MRI method for determining myocardial viability distribution.
91  personal care assistance
(4 times)
Physical Medicine
(2 times)
SCI (2 times)
DBP (1 time)
HMV (1 time)
1994 The effects of insurance benefits coverage on functional and psychosocial outcomes after spinal cord injury.
92  PocketAnalyzer
(4 times)
Chemistry
(1 time)
--- 2011 Pocket-space maps to identify novel binding-site conformations in proteins.
93  Polyclonal antisera
(4 times)
Neoplasms
(1 time)
mAbs (2 times)
CTV (1 time)
DTBIA (1 time)
1986 Increase in the concentration of major boar sperm surface proteins during maturation in the epididymis.
94  polycrystalline alumina
(4 times)
Dentistry
(3 times)
SS (3 times)
HDE (1 time)
IT (1 time)
2004 Resistance to sliding of orthodontic brackets with bumps in the slot floors and walls: effects of second-order angulation.
95  pontocerebellar angle
(4 times)
Neurology
(1 time)
ABR (1 time)
AN (1 time)
BAEP (1 time)
1994 Brainstem auditory evoked potentials and blink reflexes in patients with pontocerebellar angle tumors.
96  poorly compressible arteries
(4 times)
Vascular Diseases
(2 times)
ABI (3 times)
PAD (3 times)
CVR (1 time)
2010 Increased serum N-terminal pro-B-type natriuretic peptide levels in patients with medial arterial calcification and poorly compressible leg arteries.
97  predicted corneal acuity
(4 times)
Ophthalmology
(4 times)
BSCVA (2 times)
Avg Sim K (1 time)
BAT (1 time)
1998 An analysis of the accuracy of predicted corneal acuity in the Holladay diagnostic summary program.
98  printed circuit assembly
(4 times)
Toxicology
(2 times)
PCAs (1 time)
WEEE (1 time)
2004 Ergonomics improvements of the visual inspection process in a printed circuit assembly factory.
99  process control agent
(4 times)
Biology
(1 time)
2-CP (1 time)
MA (1 time)
MMC (1 time)
2009 Effect of process control agent on the porous structure and mechanical properties of a biomedical Ti-Sn-Nb alloy produced by powder metallurgy.
100  procoagulant cellular activity
(4 times)
Hematology
(2 times)
ANLL (1 time)
1985 Procoagulant cellular activity and disseminated intravascular coagulation in acute non-lymphoid leukaemia.