National Library of Medicine Classification 2011 Index Disease see Tyrosinemias 1-8 5,12-diHETE see Leukotriene B4 1,2-Benzopyrones see Coumarins 5,12-HETE see Leukotriene B4 1,2-Dibromoethane see Ethylene Dibromide 5-HT see Serotonin 1,8-Dihydroxy-9-anthrone see Anthralin 5-HT Antagonists see Serotonin Antagonists 1-Oxacephalosporin see Moxalactam 5-Hydroxytryptamine see Serotonin 1-Propanol 5-Hydroxytryptamine Antagonists see Serotonin Organic chemistry QD 305.A4 Antagonists Pharmacology QV 82 6-Mercaptopurine QV 269 1-Sar-8-Ala Angiotensin II see Saralasin 7S RNA see RNA, Small Nuclear 1-Sarcosine-8-Alanine Angiotensin II see Saralasin 8-Hydroxyquinoline see Oxyquinoline 13-cis-Retinoic Acid see Isotretinoin 8-Methoxypsoralen see Methoxsalen 15th Century History see History, 15th Century 8-Quinolinol see Oxyquinoline 16th Century History see History, 16th Century 17 beta-Estradiol see Estradiol 17-Ketosteroids WK 755 A 17-Oxosteroids see 17-Ketosteroids A Fibers see Nerve Fibers, Myelinated 17th Century History see History, 17th Century Aardvarks see Xenarthra 18th Century History see History, 18th Century Abate see Temefos 19th Century History see History, 19th Century Abattoirs WA 707 2',3'-Cyclic-Nucleotide Phosphodiesterases QU 136 Abbreviations 2,4-D see 2,4-Dichlorophenoxyacetic Acid Chemistry QD 7 2,4-Dichlorophenoxyacetic Acid General P 365-365.5 Organic chemistry QD 341.A2 Library symbols (U.S.) Z 881 2',5'-Oligoadenylate Polymerase see Medical W 13 2',5'-Oligoadenylate Synthetase By specialties (Form number 13 in any NLM 2',5'-Oligoadenylate Synthetase QU 141 schedule where applicable) 2-5A Synthetase see 2',5'-Oligoadenylate Synthetase Organizations (General) AS 8 2-Acetamidofluorene see 2-Acetylaminofluorene Periodical titles Z 6945.A2 2-Acetylaminofluorene QZ 202 Science (General) Q 179 2-Aminoethylisothiuronium Bromide see Particular languages, by language in appropriate LC beta-Aminoethyl Isothiourea schedule 2-Bromoergocryptine see Bromocriptine Abdomen WI 900-970 2-Chlorethanol see Ethylene Chlorohydrin General Surgery WI 900-970 2-Chloroacetophenone see Radiography see Radiography, Abdominal WI 900 omega-Chloroacetophenone Abdomen, Acute WI 900 2-Chloroethyl Alcohol see Ethylene Chlorohydrin Infant or child WI 900 2-Hydroxyphenethylamine QU 61 Abdominal Cavity WI 900 2-Mercaptoethanesulfonate see Mesna Abdominal Cramps see Colic 2-Phenylethanolamine see Abdominal Epilepsy see Epilepsies, Partial 2-Hydroxyphenethylamine Abdominal Injuries WI 900 2-Propanol Abdominal Muscles WI 900 Pharmacology QV 82 See also Abdominal Wall WI 900 20th Century History see History, 20th Century Abdominal Neoplasms WI 970 21-Hydroxyprogesterone see Desoxycorticosterone Nursing WY 156 21st Century History see History, 21st Century Abdominal Pain WI 147 3,4-Benzopyrene see Benzo(a)pyrene See also Colic 3,4-Methylenedioxyamphetamine Abdominal Pregnancy see Pregnancy, Abdominal Abuse see Amphetamine-Related Disorders WM Abdominal Wall WI 900 275 See also Abdominal Muscles WI 900 Pharmacology, etc. QV 102 Abducens Nerve WL 330 3-Isoleucine,8-Leucine Vasopressin see Oxytocin Abiogenesis see Biogenesis 4-Aminobutyrate Transaminase QU 141 Abnormal Karyotype see Chromosome Aberrations 4-Aminobutyric Acid see gamma-Aminobutyric Acid Abnormal Reflex see Reflex, Abnormal 4-Aminohippuric Acid see p-Aminohippuric Acid Abnormalities, Drug-Induced QS 679 4 Hydroxyphenylpyruvate Dioxygenase Deficiency See also Teratogens ALWAYS CONSULT MAIN SCHEDULES. USE NUMBER ASSIGNED ONLY WHEN SUBJECT REPRESENTS MAJOR EMPHASIS OF WORK BEING CLASSIFIED I-1 National Library of Medicine Classification 2011 Index Abnormalities, Multiple QS 675 Other localities, by site See also Mental Retardation Pelvic WP 155 Abnormalities, Radiation-Induced QS 681 Periapical see Periapical Abscess WU 230 Abnormalities, Severe Teratoid QS 675 Puerperal WQ 505 Abnormality, Torsion see Torsion Abnormality Subphrenic see Subphrenic Abscess WI 575 Abomasum QL 862 See also Empyema Aborigines see Oceanic Ancestry Group Abscess, Amebic see Amebiasis Aborted Fetus WQ 210 Abscess, Amebic, Hepatic see Liver Abscess, In research (general), see Fetal Research W Amebic 20.55.F4 Abscess, Cerebral see Brain Abscess Specific topics, with the topic Abscess, Hepatic see Liver Abscess See also Abortion, Induced Abscess, Hepatic, Amebic see Liver Abscess, See also Abortion, Spontaneous WQ 225 Amebic Abortifacient Agents QV 175 Abscess, Liver, Amebic see Liver Abscess, Amebic See also Oxytocics Abscess, Periapical see Periapical Abscess Abortifacient Agents, Nonsteroidal QV 175 Abscess, Pulmonary see Lung Abscess Abortifacient Agents, Steroidal QV 175 Abscess, Subdiaphragmatic see Subphrenic Abortion, Criminal W 867 Abscess Abortion, Habitual WQ 225 Abscess, Subphrenic see Subphrenic Abscess See also Fetal Death Absence Seizures see Epilepsy, Absence Abortion, Illegal see Abortion, Criminal Absenteeism Abortion, Incomplete WQ 225 School WA 350 Abortion, Induced Workplace HD 5115-5115.2 Legal aspects WQ 32-33 Absorption Public health aspects WA 550 Immunochemistry QW 504.5 Religious and social aspects HQ 767-767.52 Intestinal see Intestinal Absorption WI 402 Technique WQ 440 Of drugs QV 38 See also Aborted Fetus Of foods WI 102 Abortion, Legal Of gases QC 162 General WQ 440 Skin see Skin Absorption WR 102 Public health aspects WA 550 Of other substances, with the substance Abortion, Missed WQ 225 See also Intestinal Absorption Abortion on Demand see Abortion, Legal See also Skin Absorption Abortion, Recurrent see Abortion, Habitual Absorption, Intestinal see Intestinal Absorption Abortion, Septic WQ 256 Absorption, Skin see Skin Absorption Veterinary SF 887 Abstinence Syndrome, Neonatal see Neonatal Abortion, Spontaneous WQ 225 Abstinence Syndrome Drugs provoking see Abortifacient Agents QV 175 Abstracting and Indexing as Topic Z 695.9-695.94 Medicolegal aspects W 867 Abstracting as Topic see Abstracting and Indexing Religious and social aspects HQ 767-767.52 as Topic See also Aborted Fetus Abstracts See also Abortifacient Agents Of subjects not represented in NLM's classification, Abortion, Therapeutic LC's Z schedule General WQ 440 Of subjects represented in NLM's classification, Public health aspects WA 550 appropriate classification number preceded by the Abortion, Threatened WQ 225 letter Z Abortion, Veterinary SF 887 See also Bibliography Abreaction WM 420.5.A2 See also Indexes Abruptio Placentae WQ 212 See also Resource Guides Abscess WC 195 Abuse of Health Services see Health Services General (requiring surgery) WO 140 Misuse Bone WE 251 Abuse Reporting see Mandatory Reporting Cerebral see Brain Abscess WL 351 Abused Women see Battered Women General Surgery WO 140 Academic Dissertations as Topic see Dissertations, Liver see Liver Abscess WI 730 Academic as Topic Lung see Lung Abscess WF 651 Academic Medical Centers WX 27-28 ALWAYS CONSULT MAIN SCHEDULES. USE NUMBER ASSIGNED ONLY WHEN SUBJECT REPRESENTS MAJOR EMPHASIS OF WORK BEING CLASSIFIED I-2 National Library of Medicine Classification 2011 Index History WX 11 Accidents, Aviation WD 740 Of specific medical centers, WX 27-28 Accidents, Home WA 288 Academies and Institutes AS Accidents, Industrial see Accidents, Occupational Government institutes Accidents, Nuclear see Radioactive Hazard Release (Form numbers 23-24 in any NLM schedule where Accidents, Nuclear Reactor see Radioactive Hazard applicable) Release For other particular purposes, by subject Accidents, Occupational WA 485-491 (Form numbers 23-24 in any NLM schedule where Of the eye WW 505-525 applicable) See also special topics under Accidents History (Form numbers 23-24 in any NLM schedule See also Occupational Diseases where applicable) Accidents, Radiation see Radioactive Hazard Acanthocephala QX 200 Release Acantholysis Bullosa see Epidermolysis Bullosa Accidents, Traffic WA 275 Acanthosis Nigricans WR 265 Prevention & control WA 275 Acarbose WK 825 Acclimation see Acclimatization Acari QX 473 Acclimatization QT 145 Acariasis see Mite Infestations Cold climate QT 160 Acarina see Acari Hot climate QT 150 Acarus see Mites Tropical climate QT 150, etc. Acceleration WD 720 See also Desert Climate QT 150, etc. Accelography see Kinetocardiography Accommodation, Ocular WW 109 Acceptability of Health Care see Patient Acceptance Accountable Health Plans see Managed Competition of Health Care Accounting Access to Health Care see Health Services Dental administration WU 77 Accessibility Hospital administration WX 157 Access to Information In other specific fields, by subject Medical Records WX 173 Medical administration W 80 Special topics, by subject Nursing administration WY 77 See also Civil Rights JC 571-628 Pharmacy administration QV 736 Accessibility of Health Services see Health Services Accreditation Accessibility Dentists WU 40 Accessory Cells, Immunologic see Hospitals (General) WX 40 Antigen-Presenting Cells Special (Form numbers 27-28 in any NLM Accessory Nerve WL 330 schedule where applicable) Accessory Sex Organs see Genitalia Physicians W 40 Accessory Sex Organs, Female see Genitalia, Other institutes, etc. (Form numbers 23-24 in any Female NLM schedule where applicable) Accessory Sex Organs, Male see Genitalia, Male Other professionals (Form number 21 in any NLM Accident Insurance see Insurance, Accident schedule where applicable) Accident Prevention WA 250-288 Schools (Form numbers 18 or other appropriate General WA 250 education number in any NLM schedule where In hospitals WX 185 applicable) In workplace see Accidents, Occupational WA See also Certification