Used for taxonomic or other systematic or hierarchical classification systems.

Annotation

subhead only; includes "taxonomy", "systematics", "hierarchies"; indexing policy: Manual 19.8.16; DF: /class or /CL

pouze podheslo; zahrnuje taxonomie, systematiky, hierarchie

Abbreviation

CL

DUI

Q000145 MeSH Browser

CUI

M0030329

History note

66; used with Category B 1966; B-I 1967; B-I & N 1968-74; B-N 1975-79; A11 & B-N 1980-89; B-E, F2-4, G1-2, G12, I, J, M & N2-4 1990 forward

Online note

search policy: Online Manual; use: main heading/CL or CL (SH) or SUBS APPLY CL