Lawrence Mbuagbaw, Lahana Thabane, Pierre Ongolo-Zogo, Richard T Lester, Edward Mills, Jimmy Volmink, David Yondo, Marie José Essi, Renée-Cecile Bonono-Momnougui, Robert Mba, Jean Serge Ndongo, Francois C Nkoa, Henri Atangana Ondoa
Trials. 2011; 12: 5. Published online 2011 January 7. doi: 10.1186/1745-6215-12-5