article 2002 Increased pregnancy rates after ultralong postoperative therapy with gonadotropin-releasing hormone analogs in patients with endometriosis Fertility and Sterility ·doi:10.1016/s0015-0282(02)03338-1
article 2002 Increased pregnancy rates following ultralong postoperative therapy with GnRH analogues in patients with endometriosis ·doi:10.1016/s0015-0282(01)03042-4