Wachal, K.
Stachowska, E.
Korpuścińska, K.
Nowak, B.
Krasiński, Z.
Article History
Received: 13 May 2017
Accepted: 9 March 2018
First Online: 2 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Approval by Ethical Commission is not needed.
: Not applicable since there are no patients involved.