Pietruski, Jan K.
Skurska, Anna
Bernaczyk, Anna
Milewski, Robert
Pietruska, Maria Julia
Gehrke, Peter
Pietruska, Małgorzata D. http://orcid.org/0000-0003-0936-0769
Article History
Received: 28 May 2017
Accepted: 20 April 2018
First Online: 2 May 2018
Ethics approval and consent to participate
: The study was performed in accordance with the Helsinki Declaration of 1975, as revised in 2000. All patients included in this study provided informed written consent for their data to be used for research purposes. We did not seek ethical approval as this was a purely observational study based on routine examination, check-up appointments and patients’ medical notes and such studies are exempt from ethical approval under Polish Law.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.