Authors: Ana Clara Monsalvo; Juan P Batalle; M Florencia Lopez; Jens C Krause; Jennifer Klemenc; Johanna Zea Hernandez; Bernardo Maskin; Jimena Bugna; Carlos Rubinstein; Leandro Aguilar; Liliana Dalurzo; Romina Libster; Vilma Savy; Elsa Baumeister; Liliana Aguilar; Graciela Cabral; Julia Font; Liliana Solari; Kevin P Weller; Joyce Johnson; Marcela Echavarria; Kathryn M Edwards; James D Chappell; James E Crowe; John V Williams; Guillermina A Melendi; Fernando P Polack Journal: Nat Med Date: 2010-12-05 Impact factor: 53.440