Sudden infant death syndrome: Do the parents follow the recommendations? Irene Ruiz-Botia; Pia Cassanello-Peñarroya; Ana Díez-Izquierdo; José M. Martínez-Sánchez; Albert Balaguer-Santamaria;

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;