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. Journal of Population Therapeutics and Clinical Pharmacology, [S. l.], v. 13, n. 1, p. 11–18, 2006. DOI: 10.69980/r45cct79. Disponível em: https://jptcp.com/index.php/jptcp/article/view/13581. Acesso em: 17 oct. 2026.