TY - BOOK AU - National Library of Medicine TI - Medical subject headings: supplement to index medicus SN - (pbk) U1 - 025.49 PY - 1995/// CY - Maryland PB - US Department of Health Sciences KW - Subject heading-Medicine KW - Medical subject headings KW - New headings - 1995 KW - Previous indexing KW - Alphabetical list KW - Tree structures KW - MESH KW - IIMC N1 - Vol.36 ER -