Ali Abdul Hussan, Athraa Zaidan Hassan, Luma Ghaeb Al- Saadi, Istabreq Muhammed Ali Salman, “PREVALENCE OF CHOLELITHIASIS IN IRAQI PATIENTS WITH HEPATITIS B INFECTION”, Pak. J. Biotechnol, vol. 15, no. 2, pp. 391–397, Jun. 2018.