1. Department of Clinical Laboratory, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
2. Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
3. Department of Clinical Laboratory, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
4. Center for Clinical Laboratory, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China