Mass immunisation campaigns in South Africa--the case for judicious timing and spacing.
Durrheim
D N
DN
Ogunbanjo
G A
GA
Webb
E
E
Lee
C K
CK
D002648:Child; D006293:Health Promotion; D006801:Humans; D017589:Immunization Programs / Q000191:economics / Q000379:methods*; D011051:Poliomyelitis / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000008:administration & dosage; D013019:South Africa
D023321:Poliovirus Vaccines