The MEDLARS story at the National Library of Medicine.

Mode of access: Internet.

Medical subject headings, tree annotations, 1978 : technical notes, Medlars indexing instructions /

"PB 271 246."

Technical notes, MEDLARS indexing instructions, supplement, tumor key /

"Supersedes Technical Notes: MEDLARS Indexing Instructions, Supplement I (Tumor Key), PB-245 412. Supplements 1981 Medical Subject Headings."

MEDLARS and health information policy.

Mode of access: Internet.

Diabetes literature index.

Prepared from MEDLARS tapes furnished by the National Library of Medicine.