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;

Epidemiology and risk factors for bronchopulmonary dysplasia in preterm infants born at or less than 32 weeks of gestation Andrea Sucasas Alonso; Sonia Pértega Diaz; Rebeca Sáez Soto; Alejandro Avila-Alvarez;