AU - Murray R TI - BIologics control of virus vaccines PT - JOUR DP - 1969 TA - American Journal of Diseases of Children pages = {334-337}, VI - 118 IP - 2 AID - 10.1001/archpedi.1969.02100040336031 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1969.02100040336031 SO - American Journal of Diseases of Children August 1, 1969 118(2):334