Horacio Márquez-González, Clinical Research Service, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
Daniel Ibarra-Ríos, Department of Neonatology, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Mexico City, Mexico
Ma. Guadalupe Jean-Tron, Department of Clinical Research, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
Leticia A. Barajas-Nava, Unidad de Investigación de Medicina Basada en Evidencias, Centro Asociado Cochrane, Hospital Infantil de México Federico Gómez, Mexico City, Mexico