1. Institute for Environmental & Gender-Specific Medicine, Juntendo University Graduate School of Medicine , Chiba , Japan
2. Department of Obstetrics & Gynecology , Juntendo University Graduate School of Medicine , Tokyo , Japan
3. Department of Pathology and Microbiology , Division of Microbiology and Immunology, Nihon University School of Medicine , Tokyo , Japan
4. Laboratory of Proteomics & Biomolecular Science , Research Support Center, Juntendo University Graduate School of Medicine , Tokyo , Japan
5. Department of Obstetrics & Gynecology , Kanazawa University Graduate School of Medical Sciences , Ishikawa , Japan