World Health Organization. Biologicals UnitWHO Expert Committee on Biological Standardization (1983 : Geneva, Switzerland)2012-06-162012-06-1619831983-12-31WHO/BS/83.1401. Unpublishedhttps://iris.who.int/handle/10665/60185PC.HQWHO/BS/83.1401. UnpublishedenProlactinInternational Collaborative Study of a Preparation of Human Prolactin : draft reportstandards