著者所属:the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College. the Surgical Department and Heart Institute of the Tokyo Women's Medical College.