Lytton, Simon D.
Osiecki, Marcin
MałgorzataWoźniak,
Cukrowska, Bożena
Wierzbicka, Aldona
Goliszek, Maria
Socha, Piotr
Janczyk, Wojciech
Dayanakli, Dilek
Abendroth, Dieter
Kramp, Sabine
Fechner, Kai
Scheper, Thomas
Mahler, Michael
Bentow, Chelsea
Bogdanos, Dimietrios
Fuchs, Dietmar
Woynarowski, Marek
Article History
First Online: 21 January 2019
Compliance with ethical standards
: The study protocol conforms to the ethical guidelines of the 1975 Declaration of Helsinki as reflected in a priori approval by Ethics Committee of the Children’s Memorial Health Institute no 192/KBE/2015 and 231/KBE/2015.
: The authors declare that they have no conflict of interest.