National co-operative trials in cancer in South Africa.
Smit
B J
BJ
van der Merwe
A P
AP
D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D015337:Multicenter Studies as Topic / Q000379:methods*; D009369:Neoplasms / Q000628:therapy*; D012107:Research Design; D013019:South Africa