National Cerebral and Cardiovascular Centre, National Cerebral and Cardiovascular Centre, Juntendo University, Nara Medical University, Juntendo University, Himeji Cardiovascular Center, Yokohama City University, Fukushima Medical University, University of Tsukuba, St. Marianna University School of Medicine, Nagoya University, Nara Medical University, Nara Medical University, Nara Medical University, Nara Medical University, Kobe City Medical Center General Hospital, Nara Medical University and National Cerebral and Cardiovascular Centre