University of Fukui (JP), Jikei University School of Medicine (JP), Toho University (JP), University of Tsukuba (JP), Jichi Medical University (JP), Chiba University (JP), Oita University (JP), Kyorin University (JP), Hokkaido University (JP), University Medical Center (US), Kyoto Medical Center (JP), Cardiovascular Institute Hospital (JP), Juntendo University (JP), Osaka National Hospital (JP), Tohoku University Hospital (JP), Toho University Omori Medical Center (JP), Mito Saiseikai General Hospital (JP), Saiseikai Kumamoto Hospital (JP), Tokyo Medical University Hospital (JP), University Hospital and Clinics (US), National Cerebral and Cardiovascular Center (JP), Japan Community Healthcare Organization (JP), Sakurabashi Watanabe Hospital (JP), Tachikawa Hospital (JP), Chukyo Hospital (JP), Jichi Medical University Hospital (JP), Nippon Medical School Hospital (JP), University of Yamanashi (JP), Nippon Medical School (JP), Kindai University (JP), The University of Osaka (JP)