1. 1. Williams gynecology, Edited by John O Schorge et al McGraw Hill Medical, 2008, 1st ed, chapter 10, p225.
2. 2. Howkins and Bourne Shaws text book of gynaecology, Edited by VG Padubidri et al, 15th ed, 2011, Chapter 34, p 466.
3. 3. Ding Dah-Ching et al. Scar endometriosis at the site of caesarean section, Taiwanese Journal of Obstetrics and Gynecology, 2006: 45(3); 247 - 249.
4. 4. Agarwal Manju, Gupta Deepak, Scar endometriosis in the vagina following episiotomy presenting as cyclical spotting, Journal of obstetrics and gynaecology India, 2004; 54(1).
5. Endometriosis of the uterine cesarean section scar: A case report;Lahiri;Indian J Radiol Imaging,2008