Major causes of death in preterm infants in selected hospitals in Ethiopia (SIP): a prospective, cross-sectional, observational study oleh Lulu M Muhe, ProfMD, Elizabeth M McClure, PhD, Assaye K Nigussie, MD, Amha Mekasha, ProfMD, Bogale Worku, ProfMD, Alemayehu Worku, ProfPhD, Asrat Demtse, MD, Beza Eshetu, MD, Zemene Tigabu, MD, Mahlet A Gizaw, MD, Netsanet Workneh, MD, Abayneh Girma, MD, Mesfin Asefa, MD, Ramon Portales, MD, Tiruzer Bekele, MD, Mesele Bezabih, MD, Gesit Metaferia, MD, Mulatu Gashaw, MSc, Bewketu Abebe, MD, Hailu Berta, MD, Addisu Alemu, MD, Tigist Desta, MD, Rahell Hailu, MD, Goitom Gebreyesus, MD, Sara Aynalem, MD, Alemseged L Abdissa, MD, Riccardo Pfister, MD, Zelalem Tazu Bonger, Solomon Gizaw, Tamrat Abebe, PhD, Melkamu A Berhane, MD, Yonas Bekuretsion, MD, Sangappa Dhaded, Janna Patterson, MD, Robert L Goldenberg, ProfPhD