M. T. ORUÇ, H. KULAÇOĞLU, H. DOĞAN, D. TEZEREN, F. COŞKUN, and Ömer CENGİZ, “Oral lactulose prevents bacterial translocation in obstructive jaundice”, Turkish Journal of Gastroenterology, vol. 11, no. 2, pp. 108–112, Jan. 2000.