Kostecka, A
Sznarkowska, A
Meller, K
Acedo, P
Shi, Y
Mohammad Sakil, H A
Kawiak, A
Lion, M
Królicka, A
Wilhelm, M
Inga, A
Zawacka-Pankau, J
Article History
Received: 3 May 2014
Revised: 24 July 2014
Accepted: 18 August 2014
First Online: 23 October 2014
Competing interests
: The authors declare no conflict of interest.