Permuted medical subject headings /
National Library of Medicine (U.S.).Medical Subject Headings Section.
National Library of Medicine (U.S.)
Bethesda, Md. : The Library ; [Springfield, Va.] : U.S. Dept. of Commerce, National Technical Information Center, [distributor,
Description based on: 1981; title from cover.
Vols. for , 1983-   issued by National Library of Medicine, Medical Subject Headings Section; -1982 by National Library of Medicine.
Companion to: Medical subject headings.  Annotated alphabetic list; and to: Medical subject headings.  Tree structures.
Subject headings
Medical subject headings. Annotated alphabetic list
Medical subject headings. Tree structures