en تحقیقی اصیل Original Article afibrinogenemia, Neonatal bleeding, Neonatal sepsis, Vitamin K 30 36 https://ijn.mums.ac.ir/article_27866.html Magy Abdelwahab magywahab@yahoo.com 122513 No Department of Pediatrics, Faculty of Medicine, Cairo University, Giza, Egypt Zahraa Mohamed Ezz eldin zahraezzeldin@yahoo.com 122514 No Department of Pediatrics, Faculty of Medicine, Cairo University, Giza, Egypt Mervat Mohamed Elansary mervatelansary@gmail.com 122515 No Department of Clinical Pathology, Faculty of Medicine, Cairo University, Giza, Egypt Kareeman Gomaa Mohammed kareeman.gomaa@kasralainy.edu.eg 122516 No Department of Clinical Pathology, Faculty of Medicine, Cairo University, Giza, Egypt Amira Mahmoud Gad amira939@postgrad.kasralainy.edu.eg 122517 Yes Department of Pediatrics, Faculty of Medicine, Cairo University, Giza, Egypt Yasmeen M.M. Selim yasmeenselim87@gmail.com 122518 No Department of Pediatrics, Pediatric Hematology and Bone Marrow Transplantation, Kasr Alainy Faculty of Medicine, Cairo University, Giza, Egypt