P. Buekens,M. L. Cafferata,J. Alger,F. Althabe,J. M. Belizán,Y. Carlier,A. Ciganda,E. Dumonteil,R. Gamboa-Leon,E. Howard,M. L. Matute,S. Sosa-Estani,C. Truyens,D. Wesson and C. Zuniga. Congenital transmission of Trypanosoma cruzi in Argentina, Honduras, and Mexico: study protocol. Reprod Health. 2013;10:10.1186/1742-4755-10-55.