Fortuna, Joana, Inês Reis, Teresa Rodrigues, and Joana Saldanha. “Data Study on Preterm Newborns With Gestational Age of 32 Weeks or Less in a Perinatal Hospital in Portugal”. Journal of Pediatric and Neonatal Individualized Medicine (JPNIM) 7, no. 2 (July 10, 2018): e070209. Accessed May 20, 2025. https://jpnim.com/index.php/jpnim/article/view/070209.