ConollyM. E. (1972). Europ. J. clin. Pharm., 4, 222.
3.
HunyorS. N. (1973). Brit. med. J., 1, 209.
4.
KentP. W. (1970). Tubercle, 51, 24.
5.
MakeneW. J. (1970). The Use and Abuse of Drugs and Chemicals in Tropical Africa, p. 585. Eds. BagshaweA. F.MainaG.MngolaE. N.. Nairobi: East African Literature Bureau.
6.
PettingerW. A. (1975). New Engl. J. Med., 293, 1179.
7.
SackettD. L. (1975). Lancet, 1, 1205.
8.
StirlingL. (1976). Minister for Health, United Republic of Tanzania, interviewed in Sunday News, Dar es Salaam, 13.6.76.