Declarations
Funding
This study is the results of the research grant No.
UMO-2014/13/D/NZ5/01351 funded by the National Science Centre. The
funders had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript.
Conflict of interest
Bartus K and his institutions Jagiellonian University Medical College
and John Paul II Hospital in Krakow Poland were recipients of the above
research grant from the Polish National Science Centre. Other authors
declare no conflicts of interest concerning this study
Ethics approval
The study design was in accordance with the guiding principles of the
Declaration of Helsinki and approved by the Jagiellonian University
Ethical Committee.
Consent to participate: Not applicable
Consent for publication: Not applicable
Availability of data and material: Not applicable
Code availability; Not applicable
Authors’ contributions
R. Litwinowicz: Conception and design, manuscript writing, collection
and assembly of data; J. Natorska: Data analysis and interpretation,
collection and assembly of data, Manuscript writing; M. Zabczyk; Data
analysis and interpretation, collection and assembly of data, Manuscript
writing; B.Kapelak: Collection and assembly of data; D. Lakkireddy :
Manuscript writing: R.J. Lee: Manuscript writing; V. Vuddanda:
Manuscript writing; K.Bartus: Conception and design, manuscript writing,
collection and assembly of data