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Article History

Received: 30 June 2017

Accepted: 24 April 2018

First Online: 18 May 2018

Ethics approval and consent to participate

: All patients included in the study were given the necessary information and provided informed consent via a signed form. The project was approved by the Joint Ethical Committee (Charles University, Faculty of Medicine in Hradec Kralove, University Hospital Hradec Kralove); approval number: 201107 S54. For all obtained data, all personal identification information was removed in compliance with the Czech laws for protection of confidentiality.

: The authors declare that they have no competing interests.

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