PRACE DOKTORSKIE - Polska 45d/17608 BASHIR ELGADI An analytical study of obstetric hemorrhage at an obstetric and gynecologic hospital : Doctor's thesis / Bashir Elgadi ; Division of Perinatology Department of Perinatology and Gynecology Karol Marcinkowski University of Medical Sciences-Poznafi ; supervisior Associate Professor MD, Ph.D.