Popovic Dusan Dj,Zec Simon,Rankovic Ivan V,Glisic Tijana M,Milovanovic Tamara M (2020) Upper and lower gastrointestinal endoscopy in patients with iron deficiency anemia, SRPSKI ARHIV ZA CELOKUPNO LEKARSTVO, vol. 148, br. 1-2, str. 31-36 (Article) 

Popovic Dragan,Zgradic Sanja,Dragasevic Sanja,Zec Simon,Micev Marjan T,Naumovic Tamara,Milosavljevic Tomica N,Milovanovic Tamara M (2019) Characteristics of gastric and duodenal mucosa in the patients with primary biliary cholangitis, VOJNOSANITETSKI PREGLED, vol. 76, br. 6, str. 593-597 (Article) 

Milosavljevic Tomica N,Popovic Dusan Dj,Zec Simon,Krstic Miodrag N,Mijac Dragana D (2019) Accuracy and Pitfalls in the Assessment of Early Gastrointestinal Lesions, DIGESTIVE DISEASES, vol. 37, br. 5, str. 364-373 (Review) 

Milovanovic-Alempijevic Tamara,Nikolic Vladimir,Zec Simon,Veljkovic Aleksandar N,Sokic-Milutinovic Aleksandra D,Pavlovic-Markovic Aleksandra,Matovic Vera,Popovic Dusan Dj,Milosavljevic Tomica N (2018) Change in the incidence and anatomic distribution of colorectal adenoma and cancer over a period of 20 years - A single center experience, VOJNOSANITETSKI PREGLED, vol. 75, br. 3, str. 260-266 (Article) 

Alempijevic Tamara M,Dragasevic Sanja,Zec Simon,Popovic Dragan,Milosavljevic Tomica N (2017) Non-alcoholic fatty pancreas disease, POSTGRADUATE MEDICAL JOURNAL, vol. 93, br. 1098, str. 226-230 (Review) 

Zec Simon,Popovic Dusan Dj,Matovic Vera,Nikolic Vladimir,Bojovic Ksenija,Jovic Jasna Z,Markovic-Denic Ljiljana N,Milosavljevic Tomica N,Alempijevic Tamara M (2017) Translation and validation of the Serbian primary biliary cholangitis-40 questionnaire, PLOS ONE, vol. 12, br. 4, str. - (Article) 

Alempijevic Tamara M,Zec Simon,Nikolic Vladimir,Veljkovic Aleksandar N,Stojanovic Zoran,Matovic Vera,Milosavljevic Tomica N (2017) Doppler ultrasonography combined with transient elastography improves the non-invasive assessment of fibrosis in patients with chronic liver diseases, MEDICAL ULTRASONOGRAPHY, vol. 19, br. 1, str. 7-15 (Article) 

Alempijevic Tamara M,Zec Simon,Nikolic Vladimir,Veljkovic Aleksandar N,Milivojevic Vladimir,Dopsaj Violeta,Stankovic Sanja Dj,Milosavljevic Tomica N (2016) Erythropoietin in Predicting Prognosis in Patients with Acute-on-Chronic Liver Failure, JOURNAL OF GASTROINTESTINAL AND LIVER DISEASES, vol. 25, br. 4, str. 473-479 (Article) 

Zec Simon,Despotovic Aleksa,Spurnic-Radovanovic Aleksandra,Milosevic Ivana S,Jovanovic Milica M,Pelemis Mijomir R,Stevanovic Goran D (2016) Antimicrobial resistance in patients with urinary tract infections and the impact on empiric therapy in Serbia, JOURNAL OF INFECTION IN DEVELOPING COUNTRIES, vol. 10, br. 10, str. 1065-1072 (Article)