Mushtaque, M., Bacha, U.Q., Rashid, A., Malik, T.N. and Khanday, S.A. 2019. Outcome of bilateral versus unilateral lateral internal sphincterotomy for chronic anal fissures. International Surgery Journal. 6, 6 (May 2019), 2154–2158. DOI:https://doi.org/10.18203/2349-2902.isj20192384.