[1] Natl Cerebral & Cardiovasc Ctr, Dept Cardiovasc Med, Osaka 5658565, Japan
[2] Natl Cerebral & Cardiovasc Ctr, Dept Organ Transplantat, Osaka 5658565, Japan
[3] Natl Cerebral & Cardiovasc Ctr, Dept Cardiovasc Surg, Osaka 5658565, Japan
[4] Natl Cerebral & Cardiovasc Ctr, Dept Cardiovasc Dynam, Osaka 5658565, Japan
[5] Natl Cerebral & Cardiovasc Ctr, Dept Blood Transfus, Osaka 5658565, Japan
[6] Natl Cerebral & Cardiovasc Ctr, Dept Neurosurg, Osaka 5658565, Japan