Pre-operative risk factors assessment to anticipate technical difficulty in laparoscopic cholecystectomy for acute cholecystitis. BIRDEM Medical Journal, [S. l.], v. 15, n. 3, p. 111–119, 2025. DOI: 10.3329/birdem.v15i3.84512. Disponível em: https://www.banglajol.info/index.php/BIRDEM/article/view/84512. Acesso em: 23 jun. 2026.