Bulletin of the World Health Organization
Marianne A. B. van der Sande
,
Gijs Walraven
,
Paul Milligan
,
Marianne A. B. van der Sande
,
Gijs Walraven
,
Paul Milligan
,
Winston Banya
,
Sana M. Ceesay
,
Ousman Nyan
,
Keith P. W. J. McAdam
2001
Bulletin of the World Health Organization
7,180 citations