Funding for this research was provided by:
National Health and Medical Research Council (1091226, 568971)
Department of Education and Training
Received: 1 February 2017
Accepted: 21 February 2018
First Online: 27 February 2018
: Lei Zhang is an Associate Editor for BMC Infectious Diseases.
: Ethics approval was obtained from the Alfred Hospital Ethics Committee, Melbourne, Australia (number 108/15). This was a retrospective analysis of de-identified data, hence explicit consent was not sought from individual patients. Patients at the MSHC are made aware that their de-identified data may be used for research purposes, and they can opt out if they object to the use of their data.
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