1 Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China.
2 Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
3 Department of Clinical Laboratory, Hubei Yangxin County People's Hospital, Huangshi, Hubei, People's Republic of China.