Y. Hirooka
Japanese Journal of Cardiovascular Surgery 1981;11(1):106-107
Japanese Journal of Cardiovascular Surgery 1984;13(4):330-332
Japanese Journal of Cardiovascular Surgery 1987;17(2):183-184
Japanese Journal of Cardiovascular Surgery 1988;18(2):269-271
Japanese Journal of Cardiovascular Surgery 1991;20(4):757-758