- Correspondence to Dr Venanzio Vella, Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Imperial College London, Hammersmith Campus, Du Cane Road, London W12 0NN, UK;
- Received January 12, 2016
- Revised July 31, 2016
- Accepted August 5, 2016
- First published September 6, 2016.
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