1 Department of General Internal Medicine (Nakagawa), Fukushima Medical University, Fukushima, Japan; Department of Primary Care and Community Health (Miyata), Aichi Medical University, Nagakute, Japan. hraknkgw@fmu.ac.jp.
2 Department of General Internal Medicine (Nakagawa), Fukushima Medical University, Fukushima, Japan; Department of Primary Care and Community Health (Miyata), Aichi Medical University, Nagakute, Japan.