Fanjasoa Rakotomanana, Rindra V Randremanana, Léon P Rabarijaona, Jean Bernard Duchemin, Jocelyn Ratovonjato, Frédéric Ariey, Jean Paul Rudant, Isabelle Jeanne
Int J Health Geogr. 2007; 6: 2. Published online 2007 January 29. doi: 10.1186/1476-072X-6-2