| Affiliation: | 1. Sapporo University of Health Sciences, Department Nursing, 4-2-1-15 Nakanuma-nishi, Higashi-ku, Sapporo, Hokkaido 007-0089, Japan;2. Sapporo Medical University, Department of Nursing, School of Health Sciences, Minami 1 Nishi 17, Chuo-ku, Sapporo 060-8556, Japan;3. Hokkaido University, Center for open education, Kita 17 Nishi 8, Kita-ku, Sapporo 060-0817, Japan;4. Hokkaido University, Information Initiative center, Kita 11 Nishi 5, Kita-ku, Sapporo 060-0811, Japan;5. Hokkaido University, Faculty of Health Sciences, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0808, Japan |
