Authors
Petar Trifonov
Clinic of Gastroenterology, UMHAT St. Ivan Rilski, Sofia, Bulgaria
Department of Internal Medicine, Faculty of Medicine, Medical University –Sofia, Bulgaria
Irena Ivanova
Clinical Laboratory Department, UMHAT St. Ivan Rilski, Sofia, Bulgaria
Deyan Jelev
Clinic of Gastroenterology, UMHAT St. Ivan Rilski, Sofia, Bulgaria
Department of Internal Medicine, Faculty of Medicine, Medical University –Sofia, Bulgaria
Rosen Nikolov
Clinic of Gastroenterology, UMHAT St. Ivan Rilski, Sofia, Bulgaria
Department of Internal Medicine, Faculty of Medicine, Medical University –Sofia, Bulgaria
Zahariy Krastev
Clinic of Gastroenterology, UMHAT St. Ivan Rilski, Sofia, Bulgaria