Biswarup Bose, Abhimanyu Basu, and Subhadip Sarkar. “Agenesis of Gallbladder-Series of Four Cases - Why It Is Difficult to Diagnose Preoperatively?”. Asian Journal of Medical Sciences, vol. 14, no. 9, Sept. 2023, pp. 292-7, doi:10.3126/ajms.v14i9.54254.