- Correspondence to Dr Gerd A Kullak-Ublick, Department of Clinical Pharmacology and Toxicology, University Hospital Zurich and University of Zurich, Rämistrasse 100, Zurich 8091, Switzerland;
- Received 8 November 2016
- Revised 24 February 2017
- Accepted 28 February 2017
- Published online 12 May 2017.
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