1. Department of Obstetrics and GynecologyGraduate School of MedicineThe University of TokyoTokyoJapan
2. Precursory Research for Embryonic Science and TechnologyJapan Science and Technology AgencySaitamaJapan
3. Precursory Research for Innovative Medical CareJapan Agency for Medical Research and DevelopmentTokyoJapan
4. Department of Internal MedicineCenter for Preventive MedicineSchool of MedicineKeio UniversityTokyoJapan