4Franke HR, van de Weijer PH, Pennings TIM et al. Gonadotropin - re- leasing hormone agonist plus "add -back" hormone replacement therapy for treatment of endometriosis : a prospective, randomized, placebo - controlled, double -blind trial[J] . Fertil Steril, 2000, 74 (3) : 534.
5Phiel KL, Henderson RA, Adelman SJ et al. Differential estrogen recep- tor gene expression in human peripheral blood mononuclear cell popula- tions [J] . Immunol Lett, 2005, 97 (1) : 107.
6Matsuo H. Prediction of the change in bone mineral density induced by gonadotropin - releasing hormone agonist treatment for endometriosis [J] . Fertil Steril, 2004, 81 (1) : 149.
7Fernandez H, Lucas C, Hedon B et al. One year comparison between two add - back therapies in patients treated with a GnRH agonist for symptomatic endometriosis: a randomized double -blind trial [J] . Hum Reprod, 2004, 19 (6): 1465.
8Pierce SJ, Gazvani MR, Farquharson RF. Long- term use of gonadotro- pin- releasing hormone analogs and hormone replacement therapy in the management of endometriosis : a randomized trial with a 6 - year fol- low-up [J] . Fertil Steril, 2000, 74 (5) : 964.
9Barbieri RL Endometfiosis and the estrogen threshold theory. Relation to surgical and medical treatment [J] . J Reprod Med, 1998, 43 (3 Suppl) : 287.
10Zupi E, Marcini D, Sbracia Met, al. Add -back therapy in the treat- ment of endometriosis - associated pain [ J] . Fertil Steril, 2004, 82 (3) : 1303.
