IRUM QAISAR; AMMARA AYUB; ANAM ZAFAR; KOMAL WANIA; MANAHIL HAQ; AHSEN FAROOQ. Effect of surfactant administration in respiratory distress syndrome in terms of radiological changes in preterm infants: a multi-center study. Journal of the Pakistan Medical Association, [S. l.], v. 76, n. 04, p. 541–545, 2026. DOI: 10.47391/JPMA.22923. Disponível em: https://www.jpma.org.pk/index.php/public_html/article/view/22923. Acesso em: 19 apr. 2026.