Toho University (JP), Tokai University (JP), St. Marianna University School of Medicine (JP), Keio University (JP), Kurashiki Central Hospital (JP), Sapporo Higashi Tokushukai Hospital (JP), New Tokyo Hospital (JP), Kindai University Hospital (JP), Saiseikai Kumamoto Hospital (JP), Sapporo Science Center (JP), National Cerebral and Cardiovascular Center (JP), Toyohashi Heart Center (JP), Sakakibara Hospital (JP), Mitsui Memorial Hospital (JP), Tokyo Women's Medical University (JP), Toyama University Hospital (JP), Nagoya Heart Center (JP), Shonan Kamakura General Hospital (JP), Kokura Memorial Hospital (JP), Nippon Medical School (JP), Teikyo University (JP)