- Correspondence to Kirsten Salado-Rasmussen, Department of Infectious Diseases, M5132, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, Copenhagen Ø 2100, Denmark;
- Received 16 March 2012
- Revised 17 November 2012
- Accepted 26 November 2012
- Published in print 1 December 2012.
- Published online 27 December 2012.
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