Clinical characteristics and mortality risk factors in patients aged less than 18 years with COVID-19 in Mexico and Mexico City Rosa María Wong-Chew; Daniel Ernesto Noyola; Antonio Rafael Villa;

Risk of mayor and minor birth defects in children conceived by assisted reproductive technology (IVF/ICSI): A prospective controlled cohort study María José Sánchez Soler; Vanesa López-González; María Juliana Ballesta-Martínez; Jorge Gálvez-Pradillo; María Nicolás-Arnao; Emilio Gómez-Sánchez; Virginia Pérez-Fernández; Encarna Guillén Navarro;

Epidemiological difference could explain the higher infant mortality in Chile compared with Cuba Enrique Donoso; Jorge A. Carvajal;