State Key Lab Oncol South China;
Guangzhou 510060;
Guangdong;
Peoples R China;
Sun Yat Sen Univ;
Dept Expt Res;
Ctr Canc;
Guangzhou 510060;
Guangdong;
Peoples R China;
Sun Yat Sen Univ;
Dept Nasopharyngeal Carcinoma;
Ctr Canc;
Guangzhou 510060;
Guangdong;
Peoples R China;
Univ Rochester;
Med Ctr;
Dept Pathol;
Rochester;
NY 14642 USA;