1. Department of Medical technologyFaculty of Health SciencesKyorin University Mitaka Tokyo Japan
2. School of Medical TechnologyFaculty of Health ScienceGunma Paz University Takasaki Gunma Japan
3. Department of Health and WelfareFaculty of Health SciencesKyorin University Mitaka Tokyo Japan
4. I LABO CytoSTD Laboratory, Inc. Hachioji Tokyo Japan