Text and Data Mining valid from 2019-10-30
Received: 29 April 2019
Accepted: 22 September 2019
First Online: 30 October 2019
Ethics approval and consent to participate
: The study was approved by the Ethical Committee of the San Giovanni Battista Hospital - CTO/CRF/Maria Adelaide Hospital of Turin; no specific consent was obtained from the study participants as the study is based on archived material at the pathology wards from 1995 onwards.
: Not applicable.
: The authors declare that they have no competing interests.