Ferrero S, Tramalloni D, Venturini PL, Remorgida V. Vaginal danazol for women with rectovaginal endometriosis and pain symptoms persisting after insertion of a levonorgestrel-releasing intrauterine device. Int J Gynaecol Obstet 2011;113:116-119.
https://obgyn.onlinelibrary.wiley.com/doi/abs/10.1016/j.ijgo.2010.11.015