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Authors
Sarganas, Giselle
Neuhauser, Hannelore K
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Article History
Received: 8 October 2015
Revised: 11 December 2015
Accepted: 17 December 2015
First Online: 28 January 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.
