TY - BOOK AU - Numerof, Rita E. AU - ED - ED - ED - ED - TI - : a guide for health professionals SN - 2 PY - 1983///46 CY - Rockville, Maryland PB - Aspen Systems Corporation KW - KW - 2 KW - 0 KW - 6 KW - 20 N1 - 5 ER -