[1] Chinese Acad Med Sci & Peking Union Med Coll, Peking Union Med Coll Hosp, Beijing Key Lab Mol Targeted Diag & Therapy Nucl, Dept Nucl Med, Beijing, Peoples R China
[2] Univ Penn, Childrens Hosp Philadelphia, Perelman Sch Med, Dept Radiol, Philadelphia, PA USA
[3] Chinese Acad Med Sci & Peking Union Med Coll, PekingUn Med Coll Hosp, Dept Nucl Med, 1 Shuaifuyuan Wangfujing St, Beijing 100010, Peoples R China