1. Department of Clinical Laboratory, People's Hospital of Xing'an League, Ulanhot, Inner Mongolia 137400, P.R. China
2. Department of Five Sense Organs, People's Hospital of Xing'an League, Ulanhot, Inner Mongolia 137400, P.R. China
3. Department of Clinical Laboratory, Shenzhen People's Hospital, Shenzhen, Guangdong 518110, P.R. China