Zvizdic Z, Milisic E, Jonuzi A, Terzic S, Zvizdic D. The contribution of morphine sulfate to the development of necrotizing enterocolitis in preterm infants: a matched casecontrol study. Turk J Pediatr. 2019;61(4):513-519. doi:10.24953/turkjped.2019.04.007