Classification-Index

Classification 2025 Summer Edition

Worldwide source of medical classification resources

Class Index

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Random Allocation

(Form number 20 or 20.5 in any NLM schedule where applicable)

Randomization See Random Allocation

Randomized Controlled Trials as Topic

General

W 20.55.C5

Drugs

QV 771.4

For other purposes, by subject or specific drug or procedure

Randomized Response Technique See Surveys and Questionnaires

Range of Motion See Range of Motion, Articular

Range of Motion, Articular

General

WE 141

Localized, by site

Ranidae QL 668.E27

Ranisen See Ranitidine

Ranitidin See Ranitidine

Ranitidine

As an anti-ulcer agent

QV 69

Ranitidine Hydrochloride See Ranitidine

Ranunculaceae

As a medicinal plant

QV 766.5.R2

Geographical distribution

QV 770

Rap Music See Music

Rape

Criminology

HV 6558 - HV 6569

Psychological and psychiatric aspects of criminal

WM 600 - WM 605

Forensic aspects

W 795

Therapy for victims

WM 401

Raphe Nuclei WL 310

Rapicidin See Tyrocidine

Rapid Eye Movement Sleep Behavior Disorder See REM Sleep Behavior Disorder

Rapid Eye Movements See Sleep, REM

Rapid Fatigue of Gait See Gait Disorders, Neurologic

Raptors

Diseases

SF 994.5

Rare Books

By period

WZ 230 - WZ 270

By subject, if post 1801 or post-Americana

Works about

Z 688.R3

Rare Diseases

General

QZ 140

Specific disease, with the disease

See also Orphan Drug Production

Rare Earth Metal See Metals, Rare Earth

Rare Earth Metals See Metals, Rare Earth

Rare Gases See Noble Gases

ras Genes See Genes, ras

ras Oncogene See Genes, ras

Rash See Exanthema

Rasmussen Encephalitis See Encephalitis

Rasmussen Syndrome See Encephalitis

Rasmussen's Syndrome See Encephalitis

Rastinon See Tolbutamide

Rat Virus See Parvovirus

Rat, Inbred Strain See Rats, Inbred Strains

Rat-Bite Fever WC 390

Ratbite Fever See Rat-Bite Fever

Rate Setting and Review

General

W 74

Hospitals

WX 157