BessaSS, El-SayesIA, El-SaiediMK, Abdel-BakiNA, Abdel-MaksoudMM. Laparoscopic cholecystectomy under spinal versus general anesthesia: A prospective, randomized study. J Laparoendosc Adv Surg Tech, 2010; 20:515–520.
2.
SinhaR, GurwaraAK, GuptaSC. Laparoscopic cholecystectomy under spinal anesthesia: A study of 3492 patients. Laparoendosc Adv Surg Tech A, 2009; 19:323–327.
3.
TzovarasG, FafoulakisF, PratsasK, GeorgopoulouS, StamatiouG, HatzitheofilouC. Spinal vs. general anesthesia for laparoscopic cholecystectomy. Interim analysis of a controlled, randomized trial. Arch Surg, 2008; 143:497–501.
4.
National Institute of Clinical Evidence, NHS. Assumptions used in estimating a population benchmark, 2004. http://www.nice.org.uk
