Konstanty-Kalandyk, Janusz
Piątek, Jacek
Kędziora, Anna
Bartuś, Krzysztof
Drwila, Rafał
Darocha, Tomasz
Filip, Grzegorz
Kapelak, Bogusław
Song, Bryan HyoChan
Sadowski, Jerzy
Article History
Received: 2 January 2017
Accepted: 17 April 2018
First Online: 7 May 2018
Compliance with ethical standards
: The study was approved by the Bioethics Committee (L.dz.OIL/KBL/OIL/11/216).
: The authors declare that they have no conflict of interest.