1. Respiratory Disease Research Laboratory, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
2. Department of Pathology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
3. Department of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
4. Department of Cardiovascular Surgery, The Union Hospital, Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
5. Department of Orthopaedic Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P.R. China
6. Priority Laboratory for Zoonoses Research, Fujian Centre for Disease and Prevention, Fuzhou, Fujian 350001, P.R. China