Text and Data Mining valid from 2020-02-12
Received: 26 July 2019
Accepted: 14 January 2020
First Online: 12 February 2020
Ethics approval and consent to participate
: Procedures were approved by Siena University Hospital and national Ethics (Comitato Etico Policlinico Universitario di Siena, number GGP10058, date 21/07/2010) in accordance with 1975 Helsinki Declaration, revised in 2000 (52nd WMA General Assembly, Edinburgh, Scotland, October 2000). Informed written consent was obtained from the patient.
: Not applicable.
: The authors declare that they have no competing interests.