RAFIK M.B. HANNA, M.Sc.; GIHAN M. KAMAL EL-DEIN, M.D.; ZEINAB M.M. EL-KADY, M.D.. "Audit on the Application of Surfactant in Premature Babies in Assiut University Children Hospital", The Medical Journal of Cairo University, 86, June, 2018, 2091-2099. doi: 10.21608/mjcu.2018.56954