[1] Guangdong Prov Peoples Hosp, Guangdong Acad Med Sci, Guangdong Cardiovasc Inst, Dept Cardiac Surg, Guangzhou 510100, Guangdong, Peoples R China
[2] Natl Res Inst Child Hlth & Dev, Div Transplantat Immunol, Setagaya Ku, 2-10-1 Okura, Tokyo 1578535, Japan
[3] Natl Inst Infect Dis, Shinjuku Ku, 1-23-1 Toyama, Tokyo 1628640, Japan