Concurrent ligation of cystic duct and cystic artery versus separate ligation during laparoscopic cholecystectomy in patients with acute cholecystitis - Rahmani, Nasrin; Bonyadi, Mahtab; Sayadi, Sohrab; Moradi, Siavash; Zamani, Mohammad; Motlagh, Alireza (Medical Studies/Studia Medyczne, 2020)