Funding for this research was provided by:
University of Silesia
Article History
Received: 19 June 2019
Accepted: 27 August 2019
First Online: 16 October 2019
Compliance with Ethical Standards
:
: All authors have no conflict of interests.
: All procedures performed in studies involving animals were in accordance with the ethical standards of the institutional review board and/or national research committee, and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study protocol was approved by Local Ethics Committee for Animal Experiments in Katowice (9/2008) in the framework of the grant No.2POD08530 of Polish Ministry of Education and Science (Z. Drzazga).