C. G. Sisa Segovia, B. Guggiari, K. Cacace, . J. Brizuela, R. Acosta, and E. Sosa, “Prevalence of conversion of laparoscopic cholecystectomies in the Hospital de Clinicas during the year 2021”, Cir. parag., vol. 45, no. 3, pp. 19–22, Dec. 2021.