1. Chohakukai Medical Group Tani Clinic, Taisho-Seimei Building 3F, Yurakucho 1-9-1, Chiyoda-ku Tokyo, 100-0006, Japan
2. Department of Preventive Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
3. Municipal Hospital Speranta Association, Constanta, Romania