Morbidity and Mortality of Very-Low-Birthweight Twin Infants according to Their Sex and the Sex of the Co-Twin: A Retrospective Cohort Study

1. García-Muñoz Rodrigo, F.
2. Urquía Martí, L.
3. Zozaya Nieto, C.
4. Galán Henríquez, G.
5. Reyes Suárez, D.
6. Avila-Alvarez, A.
7. Figueras Aloy, J.
8. Vento, M.