1. Department of Health Management Center; Mito Kyodo General Hospital; Ibaraki Japan
2. Department of Internal Medicine; Niigata University Faculty of Medicine; Niigata Japan
3. Department of Internal Medicine; University of Tsukuba Institute of Clinical Medicine; Ibaraki Japan
4. Department of Clinical Trial, Design and Management, Translational Research Center; Kyoto University Hospital; Kyoto Japan
5. Department of Lifestyle Medicine; Ochanomizu University; Tokyo Japan
6. Department of Health Sciences Center for Medical Sciences; Ibaraki Prefectural University; Ibaraki Japan