Funding for this research was provided by:
Narodowe Centrum Nauki (2013/09/B/NZ4/03258, 2015/19/N/NZ2/02915)
Krajowy Naukowy Osrodek Wiodacy (KNOW-MMRC)
Text and Data Mining valid from 2018-07-03
Received: 5 February 2018
Accepted: 25 June 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the Warsaw Medical University and MSW Hospital (Warsaw, Poland) in compliance with national legislation and the Code of Ethical Principles for Medical Research Involving Human Subjects of the World Medical Association. Written consent was obtained from all patients and healthy individuals according to the Declaration of Helsinki (BMJ 1991; 302:1194). The authors are very grateful to all the families for their participation in this study.
: Not applicable.
: The authors declare that they have no competing interests.
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