1)斎藤英和:平成17年度倫理委員会登録・調査小委員会報告.日産婦誌58:1554-1579,2006
2)大口昭英:双胎妊娠の特徴-単胎との比較において.双胎妊娠・分娩管理マニュアル,(監)佐藤郁夫,(編)松原茂樹.産婦人科の実際 別冊,金原出版,pp28-30,2005
3)水口弘司:多胎妊娠に関する見解.日産婦誌48:11,1996
4)日本生殖医学会ホームページ:http://www/jsrm.or.jp/
5)柴原浩章:ARTによる多胎妊娠発生予知と移植胚数の減少に向けて.日産婦誌59:1787-1796, 2007
6)Shibahara H, Suzuki T, Tanaka Y, et al:Establishment and application of criteria for elective transfer of two ggod-quality embryos to reduce high-order multiple pregnancies. Reprod Med Biol 1:23-29, 2002
7)Suzuki T, Shibahara H, Hirano Y, et al:Randomized study comparing day 2 versus day 3 elective transfer of two good-quality embryos. Reprod Med Biol 3:99-104, 2004
8)Shibahara H, Hirano Y, Okajima T, et al:Establishment of criteria for elective single embryo transfer at day 2 or day 3 by analyzing cases with successful implantation of all embryos transferred. J Obstet Gynaecol Res 33:501-505, 2007
9)Bergh C:Single embryo transfer:a mini-review. Hum Reprod 20:323-327, 2005
10)Gerris L:Single embryo transfer and IVF/ICSI outcome:a balanced appraisal. Hum Reprod Update 10:1-17, 2004
11)Martikainen H, Tiitinen A, Tomas C, et al:One versus two embryos transfer after IVF and ICSI:a randomized study. Hum Reprod 16:1900-1903, 2001
12)Thurin A, Hausken J, Hillensjo T, et al:Elective single-embryo transfer versus double-embryo transfer in in vitro fertilization. N Engl J Med 351:2392-2402, 2004
13)Pandian Z, Bhattacharya S, Ozturk O, et al:Number of embryos for transfer following in-vitro fertilization or intra-cytoplasmic sperm injection. Cochrane Database Syst Rev 18(4): CD003416, 2004