1) Homburg R, Howles CM : Low-dose FSH therapy for anovulatory infertility associated with polycystic ovary syndrome : rationale, results, reflections and refinements. Hum Reprod Update 5 : 493─499, 1999(Erratum in : Hum Reprod Update 6 : 106, 2000)
2) Thessaloniki ESHRE/ASRM-Sponsored PCOS Consensus Workshop Group : Consensus on infertility treatment related to polycystic ovary syndrome. Hum Reprod 23 : 462─477, 2008(Erratum in : Hum Reprod 23 : 1474, 2008)
3) Macgregor AH, Johnson JE, Bunde CA : Further clinical experience with clomiphene citrate. Fertil Steril 19 : 616─622, 1968
4) White DM, Polson DW, Kiddy D, et al : Induction of ovulation with low-dose gonadotropins in polycystic ovary syndrome : an analysis of 109 pregnancies in 225 women. J Clin Endocrinol Metab 81 : 3821─3824, 1996
5) 水口弘司,青野敏博,苛原 稔,他 : 本邦婦人における多嚢胞性卵巣症候群の診断基準設定に関する小委員会(平成2年度~4年度)検討結果報告.日産婦誌47 : 1287─1297,1995
6) Van Der Meer M, Hompes PG, De Boer JA, et al : Cohort size rather than follicle-stimulating hormone threshold level determines ovarian sensitivity in polycystic ovary syndrome. J Clin Endocrinol Metab 83 : 423─436, 1998
7) Brown JB : Pituitary control of ovarian function--concepts derived from gonadotrophin therapy. Aust N Z J Obstet Gynaecol 18 : 46─54, 1978
8) Polson DW, Mason HD, Saldahna MB, et al : Ovulation of a single dominant follicle during treatment with low-dose pulsatile follicle stimulating hormone in women with polycystic ovary syndrome. Clin Endocrinol(Oxf) 26 : 205─512, 1987
9) Homburg R, Levy T, Ben-Rafael Z : A comparative prospective study of conventional regimen with chronic low-dose administration of follicle-stimulating hormone for anovulation associated with polycystic ovary syndrome. Fertil Steril 63 : 729─733, 1995
10) Hedon JN, Hugues JC, Emperaire JJ, et al : A comparative prospective study of a chronic low dose versus a conventional ovulation stimulation regimen using recombinant human follicle stimulating hormone in anovulatory infertile women Hum. Reprod 13 : 2688─2692, 1998
11) White DM, Polson DW, Kiddy D, et al : Induction of ovulation with low-dose gonadotropins in polycystic ovary syndrome : an analysis of 109 pregnancies in 225 women. J Clin Endocrinol Metab 81 : 3821─3824, 1996
12) Calaf Alsina J, Ruiz Balda JA, Romeu Sarrio A, et al : Ovulation induction with a starting dose of 50 IU of recombinant follicle stimulating hormone in WHO group II anovulatory women : the IO-50 study, a prospective, observational, multicentre, open trial. BJOG 110 : 1072─1077, 2003
13) Leader A : Monofollicular Ovulation Induction Study Group. Improved monofollicular ovulation in anovulatory or oligo-ovulatory women after a low-dose step-up protocol with weekly increments of 25 international units of follicle-stimulating hormone. Fertil Steril 85 : 1766─1773, 2006
14) Christin-Maitre S, Hugues JN : Recombinant FSH Study Group. A comparative randomized multicentric study comparing the step-up versus step-down protocol in polycystic ovary syndrome. Hum Reprod 18 : 1626─1631, 2003
15) Hugues JN, Cedrin-Durnerin I, Howles CM, et al : The use of a decremental dose regimen in patients treated with a chronic low-dose step-up protocol for WHO Group II anovulation : a prospective randomized multicentre study. Hum Reprod 21 : 2817─2822, 2006