Published on in Vol 20, No 3 (2018): March
1 Graduate School of Human Sciences, Waseda University, Tokorozawa, Japan
2 Department of Health Sciences and Social Welfare, School of Human Sciences, Waseda University, Tokorozawa, Japan
3 Department of Medicine, School of Medicine, Tokai University, Isehara, Japan
4 Faculty of Human Sciences, Waseda University, Tokorozawa, Japan
*these authors contributed equally