TY - BOOK AU - United States Pharmacopeial Convention Inc TI - United States pharmacopeia (USP) xxiI NF xvii supplement 2, 1990 SN - (0195-7996) U1 - 615.1173 PY - 1990/// CY - Rockville PB - United State Pharmacopeial Convention Incorporation KW - References (USP) KW - Pharmacology -- Therapeutics N1 - USP, United States Pharmacopoeia, drug standards, pharmaceutical reference ER -