Channa, Naseem Aslam, Fatehuddin Khand, Abdul Rahim Memon, and Allah Nawaz Memon. 2008. “ASSOCIATION OF TEA AND OTHER ADDICTIVE SUBSTANCES WITH GALLSTONE DISEASE IN SOUTHERN SINDH, PAKISTAN: Association of Tea With Gallstone Disease”. Pakistan Armed Forces Medical Journal 58 (4):363-71. https://pafmj.org/PAFMJ/article/view/1901.