- Correspondence to Professor Christian Kupatt, I. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Ismaninger Straße 22, 81675 Munich, Germany;
- Received 14 January 2017
- Revised 24 April 2017
- Accepted 25 April 2017
- Published in print 1 January 2018.
- Published online 11 December 2017.
- Published first 31 May 2017.
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