TY - GEN DP - http://iris.who.int/ DB - WHO IRIS AU - Westermark, M AU - World Health Organization. Division of Drug Management and Policies AU - WHO Collaborating Centre for Chemical Reference Substances CY - Geneva PP - Geneva LA - en LA - fr PB - World Health Organization PB - World Health Organization UR - https://iris.who.int/handle/10665/63947 DA - 1997 PY - 1997 SE - WHO/PHARM/97.595 SE - 110 p. M1 - WHO/PHARM/97.595 TI - WHO Collaborating Centre for Chemical Reference Substances : report on the work in 1997 / by M. Westermark KW - Reference Standards KW - Pharmaceutical Preparations KW - standards ER -