An Observational, Prospective, Multicenter, Registry-Based Cohort Study Comparing Conservative and Medical Management for Patent Ductus Arteriosus oleh Emel Okulu, Omer Erdeve, Zehra Arslan, Nihal Demirel, Huseyin Kaya, Ismail Kursad Gokce, Sabahattin Ertugrul, Merih Cetinkaya, Gokhan Buyukkale, Ferda Ozlu, Huseyin Simsek, Yalcin Celik, Hilal Ozkan, Nilgun Köksal, Baris Akcan, Munevver Turkmen, Kiymet Celik, Didem Armangil, Ali Bulbul, Kadir Serafettin Tekgunduz, Mehmet Yekta Oncel, Funda Tuzun, Ebru Ergenekon, Hacer Ergin, Saadet Arsan, Turkish Neonatal Society INTERPDA Study Group