作者单位:Southern Med Univ, Nanfang Hosp, Dept Radiol, Guangzhou 510515, Peoples R China[1]Southern Med Univ, Sch Basic Med Sci, Dept Immunol, Guangzhou 510515, Peoples R China[2]Southern Med Univ, Inst Mol Immunol, Sch Lab Med & Biotechnol, Guangzhou 510515, Peoples R China[3]