Radioimmunoassay Center & Clinical Laboratory;
the Second Affiliated Hospital of Soochow University;
Suzhou 215004;
Jiangsu Province;
China;
Department of MRI;
the Second Affiliated Hospital of Soochow University;
Suzhou 215004;
Jiangsu Province;
China;
Radioimmunoassay Center;
the Municipal Hospital of Suzhou;
Suzhou 215002;
Jiangsu Province;
China;