Authors: A Roderick Escombe; David A J Moore; Robert H Gilman; Marcos Navincopa; Eduardo Ticona; Bailey Mitchell; Catherine Noakes; Carlos Martínez; Patricia Sheen; Rocio Ramirez; Willi Quino; Armando Gonzalez; Jon S Friedland; Carlton A Evans Journal: PLoS Med Date: 2009-03-17 Impact factor: 11.069