Goyal, K. S., Utaal, M. S., & Bhatia, P. K. (2019). Comparative study of standard laparoscopic cholecystectomy and single incision laparoscopic cholecystectomy: outcome and complications. International Journal of Research in Medical Sciences, 7(11), 4310–4313. https://doi.org/10.18203/2320-6012.ijrms20195007