TY - GEN ED - World Health Organization Study Group on General Requirements for the Sterility of Biological Substances (1959 : Geneva). TI - Requirements for biological substances 6 : general requirements for the sterility of biological substances : report of a study group [meeting held in Geneva from 20 to 25 April 1959] T2 - (WHO technical report series ; 200) SN - 92-4-120200-9 PY - 1960/// CY - Geneva : PB - World Health Organization KW - Biological products KW - Standards KW - Sterilization ER -