1. Ensuiko Sugar Refining Co., Ltd.
2. Fujita Memorial Nanakuri Institute, Fujita Health University
3. Department of Public Health, Fujita Health University School of Health Sciences
4. Faculty of Health Science, Shigakkan University
5. Angel Ladies Clinic
6. Watanabe Maternity Hospital
7. Department of Obstetrics and Gynecology, Fujita Health University School of Medicine