Gadhvi, U. I., D. A. Bhimani, J. Waghela, and D. K. Rajgor. “A Comparative Study of Laparoscopic Cholecystectomy With and Without Abdominal Drain”. International Journal of Research in Medical Sciences, vol. 6, no. 11, Oct. 2018, pp. 3639-42, doi:10.18203/2320-6012.ijrms20184421.