Pavlovic Momcilo

College of Vocational Studies in Subotica, Banijska 67, 24000 Subotica, Serbia

Berenji Karolina

College of Vocational Studies in Subotica, Banijska 67, 24000 Subotica, Serbia

Bukurov Marko

College of Vocational Studies in Subotica, Banijska 67, 24000 Subotica, Serbia

Radlovic Nedeljko

Department of Gastroenterology, University Children Hospital, Tirsova 10, 11000 Belgrade, Serbia

Lekovic Zoran

Department of Gastroenterology, University Children Hospital, Tirsova 10, 11000 Belgrade, Serbia

Stojsic Zorica

Institute of Pathology, Dr Subotica 1, 11000 Belgrade, Serbia

Novak Arpad

General Hospital Subotica, Izvorska 3, 24000 Subotica, Serbia

Rokvic Zeljko

General Hospital Subotica, Izvorska 3, 24000 Subotica, Serbia

Arsic Bogdan

General Hospital Subotica, Izvorska 3, 24000 Subotica, Serbia