1. Carroli G, Belizan J. Episiotomy for vaginal birth. Cochrane Database Syst Rev. 2000;2:CD000081.
2. Carroli G, Mignini L. Episiotomy for vaginal birth. Cochrane Database Syst Rev. 2009;1:CD000081.
3. Jiang H, Qian X, Carroli G, Garner P. Selective versus routine use of episiotomy for vaginal birth. Cochrane Database Syst Rev. 2017;2:CD000081.
4. Clesse C, Lighezzolo-Alnot J, De Lavergne S, Hamlin S, Scheffler M. Statistical trends of episiotomy around the world: Comparative systematic review of changing practices. Health Care Women Int. 2018;39:644–62.
5. World Health Organization. Appropriate technology for birth. Lancet. 1985;2:436–7.