TY - BOOK ED - World Health Organization TI - WHO expert committee on specifications for pharmaceutical preparations: fifty-first report SN - 9789241210034 SN - 0512-3054 AV - RS 189 .W475 2017 PY - 2017/// CY - Geneva PB - World Health Organization KW - Drugs KW - Quality control KW - Congresses KW - Standards KW - Pharmacopoeias N1 - Includes appendices and bibliographical references; schoolofmedicine ER -