Funding for this research was provided by:
European Hydration Institute
Text and Data Mining valid from 2019-01-21
Received: 21 May 2018
Accepted: 10 December 2018
First Online: 21 January 2019
Compliance with ethical standards
: Dr. Volker Thoma declares that he has no conflict of interest. Olivia Patsalos declares that she has no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.