1. Program of Reproductive and Stem Cell BiologyStanford University School of MedicineStanfordCaliforniaUSA
2. Department of Obstetrics and GynecologyStanford University School of MedicineStanfordCaliforniaUSA
3. Department of MedicineStanford University School of MedicineStanfordCaliforniaUSA
4. Department of Obstetrics and GynecologyAkita UniversityAkitaJapan