review 1998 GnRH agonists and add‐back therapy: is there a perfect combination? British journal of obstetrics and gynaecology ·doi:10.1111/j.1471-0528.1998.tb10146.x
article 1994 Multiple gestation following gonadotrophin releasing hormone therapy for the treatment of minimal endometriosis British journal of obstetrics and gynaecology ·doi:10.1111/j.1471-0528.1994.tb13125.x