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Dr. Hira Prasad Singh, Dr. Vinod Kumar. CORRELATION OF PREOPERATIVE ULTRASONOGRAPHIC GALLBLADDER WALL THICKNESS WITH OPERATIVE DIFFICULTY DURING CHOLECYSTECTOMY: AN OBSERVATIONAL STUDY AT A TERTIARY CARE HOSPITAL IN BIHAR. J Popl Ther Clin Pharmacol [Internet]. 2006 Jan. 9 [cited 2026 Oct. 17];13(1):11-8. Available from: https://jptcp.com/index.php/jptcp/article/view/13581