NLM Classification Schedule WT

QS QT QU QV QW QX QY QZ W WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WQ WR WS WT WU WV WW WX WY WZ

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WT Geriatrics. Chronic Disease
	Classify works on geriatric nursing in WY 152.
	WT 1-39 Reference Works
	WT 100-166 Geriatrics
	WT 500 Chronic Disease
	Reference Works

WT 1	Societies (Cutter from name of society) (Used for both monographs and serials)
	Includes ephemeral membership lists issued serially or separately. Classify substantial lists with directories. Classify annual reports, journals, etc., in W1.
	Collected works (General)
WT 5	By several authors
WT 7	By individual authors

WT 9	Addresses. Essays. Lectures (General)

WT 11	History (Table G)
WT 11.1	General coverage (Not Table G)

WT 13	Dictionaries. Encyclopedias (Used for both monographs and serials)

WT 15	Classification. Terminology (Used for both monographs and serials)

WT 16	Tables. Statistics (Used for both monographs and serials)

WT 17	Atlases. Pictorial works
	Cf. QZ 17 for tissue pathology of disease.

WT 18	Education
	Classify here works about education.

WT 18.2	Educational materials (Used for both monographs and serials)
	Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, catalogs, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.

WT 19	Schools, departments, and faculties of geriatrics (Used for both monographs and serials)

WT 20	Research (General)
	Classify here works about research in general. Classify works about research on a particular subject by subject.

WT 21	Geriatrics as a profession. Ethics. Peer review

WT 22	Directories (Table G) (Used for both monographs and serials)
WT 22.1	General coverage (Not Table G) (Used for both monographs and serials)
	Laboratories, institutes, etc.
WT 23	Collective
WT 24	Individual (Cutter from name of institution)

WT 25	Laboratory manuals. Technique

WT 26	Equipment and supplies
	Classify catalogs in W 26.

WT 26.5	Informatics. Automatic data processing. Computers (General)
	Classify works on use for special subjects by subject.
	Hospitals, dispensaries, clinics, old age homes, etc.
WT 27	Collective (Table G)
WT 27.1	General coverage (Not Table G)
WT 28	Individual (Cutter from name of hospital) (Table G)
	Museums, exhibitions, etc.
WT 28.5	Collective
WT 28.6	Individual (Cutter from name of museum, etc.)

WT 29	Day care centers and programs (Table G)
WT 29.1	General coverage (Not Table G)

WT 30	Surveys. Medicosocial problems of gerontology and chronic disease

WT 31	Medical care plans. Long term care
	Include here works on Medicare. Classify works on nursing care only in WY 152.

WT 32	Laws (Table G) (Used for both monographs and serials)
WT 32.1	General coverage (Not Table G) (Used for both monographs and serials)
WT 33	Discussion of law (Table G) (Used for both monographs and serials)
WT 33.1	General coverage (Not Table G) (Used for both monographs and serials)

WT 39	Handbooks. Resource guides (Used for both monographs and serials)
	Geriatrics

WT 100	General works
	Classify works on specific diseases with the disease in other schedules; on nursing of specific diseases in WY 152; on anesthesia in WO 445; on surgery in WO 950.

WT 104	Aging process.
	Classify works on aging tissue here. Classify works on the aging organ or system with the organ or system.

WT 115	Nutritional requirements. Nutrition disorders

WT 116	Longevity. Life expectancy. Death
	Cf. WS 200 for death of children, and other specific topics related to death, e.g., Attitude to death BF 789.D4, etc.

WT 120	Popular works (General). Geriatric hygiene
	Include here autobiographical case histories. Example: Mills. Notings of a nonogenarian. Classify popular works on a particular subject by subject.

WT 141	Physical examination. Diagnosis. Diagnostic methods. Monitoring

WT 145	Geriatric psychology. Mental health
	Classify works on geriatric psychiatry in WT 150.

WT 150	Geriatric psychiatry. Mental disorders of aging
	Classify works on specific disorders with the disorder; on geriatric psychology in WT 145.
WT 155	Senile dementia. Alzheimer's disease
	Cf. WM 220 for dementia and presenile dementia.

WT 166	Therapeutics (General or not elsewhere classified)
	Chronic Disease
	For children, see WS 200.

WT 500	General works