ERBAŞ, Orhan, Nilgün Sönmez ACAR, Berrin Arısoy ESEN, and Dilek ELİBÜYÜK. 1993. “SEROLOGIC MARKERS OF VIRAL HEPATITIS IN ATATÜRK DAY CARE CENTER STAFF AND THE CHILDREN LIVING IN THE CENTER”. Turkish Journal of Gastroenterology 4 (1):43-46. https://www.turkjgastroenterol.org/index.php/tjg/article/view/260.