1 Department of General Medicine (Morita, Morikawa), Nara City Hospital, Higashikideracho, Nara, Japan; Department of General Internal Medicine (Nishizawa), St. Luke's International University, Tokyo, Japan taka226659@gmail.com.
2 Department of General Medicine (Morita, Morikawa), Nara City Hospital, Higashikideracho, Nara, Japan; Department of General Internal Medicine (Nishizawa), St. Luke's International University, Tokyo, Japan.