Bembenek, Jan Pawel
Karlinski, Michal Adam
Kurkowska-Jastrzebska, Iwona
Czlonkowska, Anna
Article History
Received: 11 January 2018
Accepted: 9 March 2018
First Online: 19 March 2018
Compliance with ethical standards
: The registry was developed in concordance with the Declaration of Helsinki and was approved by the local ethics committee.
: The authors declare that they have no conflict of interest.