1. Statistics and Information Department, Minister’s Secretariat, Ministry of Health, Labor and Welfare, JAPAN. http://www.mhlw.go.jp/english/database/db-hw/index.html (last accessed 28 August 2009)
2. Childbearing beyond age 40: pregnancy outcome in 24,032 cases;Gilbert;Obstet Gynecol,1999
3. Poor prognosis of recurrent aborters with either maternal or paternal reciprocal translocation;Sugiura-Ogasawara;Fertil Steril,2004
4. Lupus anticoagulant and pregnancy management;Farquharson;Lancet,1984
5. Midline uterine defect size correlated with miscarriage of euploid embryos in recurrent cases;Sugiura-Ogasawara;Fertil Steril,2008