Center for Integrated Science and Humanities, Fukushima Medical University, Hikarigaoka 1, Fukushima City, Fukushima 960-1295, Japan; Corresponding author. Center for Integrated Science and Humanities, Fukushima Medical University, Hikariga-oka 1, Fukushima City 960-1295, Japan.
Kenichi Satoh
Faculty of Data Science, Shiga University, 1-1-1 Banba Hikone, Shiga 522-8522, Japan
Michael R. Reich
Department of Global Health and Population, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA
