Received: 16 December 2018
Accepted: 30 June 2019
First Online: 5 July 2019
Ethics approval and consent to participate
: The study was approved by the local ethics committee – Jagiellonian University Collegium Medicum Committee of Bioethics (number of approval: 122.6120.198.2016). Each patient has given an written informed consent before inclusion in the study.
: Not applicable.
: The authors declare that they have no competing interests.