- Correspondence to Professor L Emtestam, Department of Dermatology, Karolinska University Hospital and Karolinska Institutet, Stockholm SE-141 86, Sweden;
- Received 26 March 2013
- Revised 14 November 2013
- Accepted 13 January 2014
- Published in print 22 February 2014.
- Published online 24 February 2014.
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