- Correspondence to Professor Dirk Haller, Chair of Nutrition and Immunology, Technische Universität München, Gregor-Mendel-Str. 2, Freising 85354, Germany;
- Received 9 May 2015
- Revised 2 December 2015
- Accepted 21 December 2015
- Published in print 1 May 2017.
- Published online 7 April 2017.
- Published first 4 February 2016.
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