Ansari, Selim M., Sabina Banu, M.A. Awal, Abu Bakkar Siddique, and Md. Monjur Alam. 2008. “Polypoid Gall Bladder Lesions: Is It Necessary for Immediate Surgery?”. Bangladesh Medical Research Council Bulletin 33 (2):44-47. https://doi.org/10.3329/bmrcb.v33i2.1203.