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

Extrauterine growth restriction among neonates with a birthweight less than 1500 grams Alejandro Avila-Alvarez, Alfonso Solar Boga, Carmen Bermúdez-Hormigo, Jesús Fuentes Carballal

Catch-up growth and associated factors in very low birth weight infants Teodoro Durá-Travé, Isabel San Martín-García, Fidel Gallinas-Victoriano, María Jesús Chueca-Guindulain, Sara Berrade-Zubiri