1. Department of Human Arts and Sciences; Graduate School of the University of Human Arts and Sciences; Saitama Japan
2. Nursing Science, Human Care Department; Tohto College of Health Sciences; Fukaya Japan
3. Division of Salivary Gland and Health Medicine, Department of Oral Science, Graduate School of Dentistry; Kanagawa Dental University; Yokosuka Japan
4. Institute for Advanced Biosciences; Keio University; Tsuruoka Japan
5. Shonan Hospital; Yokosuka Japan