1 Department of Clinical Laboratory, Peking Union Medical College Hospital.
2 Faculty of Clinical Laboratory Diagnostics, Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
3 School of Biomedical Sciences, The Charles Sturt University, Leeds Parade, Orange.
4 Centre for Infectious Diseases and Microbiology Laboratory Services, ICPMR-Pathology West, Westmead Hospital, University of Sydney, Westmead, NSW, Australia.