- Correspondence to Lt Col Wes O Zimmermann, Department of Training Medicine and Training Physiology, Royal Dutch Army, Postal address: Stille Steeg West 34, Amersfoort 3823 ZJ, The Netherlands; ,
- Received 20 February 2016
- Revision received 26 May 2016
- Accepted 29 May 2016
- Published online 22 July 2016.
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