Text and Data Mining valid from 2019-08-05
Received: 26 March 2019
Accepted: 22 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: The study was approved by the Lithuanian Bioethics Committee (2007-11-23 Nr.:50 and 2011-09-07 Nr.:6B-11-275), and written informed consent was obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.