1. Department of Pediatric Infectious Diseases, Institute of Tropical MedicineNagasaki University Nagasaki Japan
2. Department of Obstetrics and Gynaecology, School of MedicineJuntendo University Tokyo Japan
3. Department of Women's Health/Mother–Child Nursing, Faculty of Life ScienceKumamoto University Kumamoto Japan
4. Kumamoto Prefecture Kumamoto Japan
5. Kitamura Institute of Mental Health Tokyo Tokyo Japan
6. Department of Psychiatry, Graduate School of MedicineNagoya University Nagoya Japan