Funding for this research was provided by:
European Union and the State of Hungary, co-financed by the European Social Fund (EFOP-3.6.1-16-2016-00008, EFOP-3.6.1-16-2016-00008)
Hungarian Government (VKSZ 12-1-2013-0012, VKSZ 12-1-2013-0012)
Received: 31 January 2019
Accepted: 14 October 2019
First Online: 29 October 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the University of Szeged (registration number 185/2012), and all enrolled patients have provided their written informed consent to participate in the study.
: The manuscript does not contain any individual person’s data in any form.
: The authors declare that they have no competing interests.