Funding for this research was provided by:
Sunstar Suisse SA, Etoy, Switzerland
Received: 15 March 2019
Accepted: 9 July 2019
First Online: 16 July 2019
Ethics approval and consent to participate
: This single-center observational retrospective study was approved from the Ethical Committee of the Spedali Civili of Brescia (NP 2544) on 20-12-2016.All procedures were carried out after obtaining informed written consent of patients.
: Not applicable.
: The authors declare that they have no competing interests.