2
3
4
by Bertrand, Germain M.
Published in Africa-Spectrum (1986)
Get additional information online
E-Article
11
13
14
15
Get additional information online
E-Article
16
18
by Given, N., Trenque, T., Choisy, H., Germain, M.-L.
Published in BMJ (1996)
Get additional information online
E-Article
19