Document is current

Article History

Received: 6 October 2017

Accepted: 26 June 2018

First Online: 5 July 2018

Ethics approval and consent to participate

: The authors declare that no experiments were performed on humans or animals for this study. The study was approved by the Ethics Committee of Centro Hospitalar e Universitário de Coimbra and was performed in accordance with the Declaration of Helsinki. They have followed the protocols of their work center on the publication of patient data. Patient consent was not obtained since all data was retrieved retrospectively from medical records without additional blood samples or biochemical analysis.

: Not applicable. The authors declare that no patient data (details, images or videos relating to individual participants) are included in this article.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.