Prognostic role of novel variables in sudden cardiac death risk associated to hypertrophic cardiomyopathy María López Blázquez; María Ángeles Espinosa Castro; Reyes Álvarez García-Rovés; Miriam Centeno Jiménez; Ana Isabel Fernández Ávila; Francisco Javier Bermejo Thomas; Constancio Medrano López;

Growth outcome at 2 years using Fenton and Intergrowth-21st charts in infants less than 1500 g Lara González García; Enrique García López; Belén Fernández Colomer; Laura Mantecón Fernández; Sonia Lareu Vidal; Marta Suárez Rodríguez; Rosa Arias Llorente; Gonzalo Solís Sánchez;

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;