Funding for this research was provided by:
Sunstar Suisse SA
Received: 16 August 2017
Accepted: 18 January 2018
First Online: 25 February 2018
Ethics approval and consent to participate
: Not applicable.
: All the Subjects entered into this study signed a written Informed consent to participate in this study. All authors have read and approved the manuscript and given their consent for its publication.
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