Funding for this research was provided by:
Project of Ministry of Health, Czech Republic for Conceptual Development of Research Organization (00064203)
Text and Data Mining valid from 2018-09-27
Received: 24 March 2018
Accepted: 17 September 2018
First Online: 27 September 2018
Ethics approval and consent to participate
: The study was approved by the Ethics Committee for Multi-Centric Clinical Trials of the Motol University Hospital, and written consent was obtained from all participants. A written consent from parents of participants under the age of 16 was obtained for participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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