Valerieva Yana, Lutakov Ivan, Golemanov Branimir, Jelev Georgi, Vladimirov Borislav
Clinical Center of Gastroenterology, University Hospital “Queen Joanna-ISUL” Sofia, Medical University Sofia, Bulgaria
Clinical Center of Gastroenterology, Department of Surgery, University Hospital “Queen Joanna-ISUL” Sofia, Medical University Sofia, Bulgaria
Balkan Med J. 2018 Jul 24;35(4):346-347. doi: 10.4274/balkanmedj.2017.1485. Epub 2018 Mar 28.