Affiliation: | Division of Internal Medicine Tama-Hokubu Medical Center Tokyo Metropolitan Health and Medical Treatment Corporation Higashi-murayama Tokyo, Japan; Laboratory of Molecular Epidemiology for Infectious Agents Kitasato Institute for Life Sciences Kitasato University Minato-ku Tokyo, Japan; Divisions of Clinical Laboratory Tama-Hokubu Medical Center Tokyo Metropolitan Health and Medical Treatment Corporation Higashi-murayama Tokyo, Japan |