article 2002 Gonadotrophin releasing hormone agonist (GnRHa)-Zoladex (Goserelin) and hormonal add-back therapy in endometriosis: a 12 month study ·doi:10.1016/s0015-0282(01)03083-7
article 2001 Gonadotropin-releasing hormone agonist goserelin and hormone add-back therapy for endometriosis ·doi:10.1016/s1074-3804(01)80116-x