1) Jędrzej Śniadecki Voivodeship Integrated Hospital in Białystok M. Curie-Skłodowskiej 26, 15-950 Białystok, Poland.

2) T. Marciniak Lower Silesian Specialist Hospital Fieldorfa 2 Street , 54-049 Wroclaw, Poland

3) University Clinical Hospital in Szczecin Unii Lubelskiej 1, 71-252 Szczecin, Poland

2) T. Marciniak Lower Silesian Specialist Hospital Fieldorfa 2 Street , 54-049 Wroclaw, Poland

3) University Clinical Hospital in Szczecin Unii Lubelskiej 1, 71-252 Szczecin, Poland

3) University Clinical Hospital in Szczecin Unii Lubelskiej 1, 71-252 Szczecin, Poland

4) University Clinical Hospital in Poznań49 Przybyszewskiego Street, 60-355 Poznań Poland

5) PoznańUniversity of Medical Sciences 11 Aleksandra Fredry Street, 61-701 PoznaĹ Poland

6) Health Care Complex in Ostrów Wielkopolski Limanowskiego 20-22, 63-400 Ostrów Wielkopolski, Poland

7) Independent Provincial Combined Hospital in Szczecin Arkońska Street, 71-455 Szczecin, Poland