Popper, Helmut H.- http://orcid.org/0000-0003-4970-1265
Article History
Received: 30 December 2019
Accepted: 30 June 2020
First Online: 29 July 2020
Ethics approval and consent to participate
: The use of tissues and patient data has been approved by the Ethics Committee of the Medical University, No. 24–135 ex 11/12; however, patient data were not used in this study.
: A consent for publication was not necessary as no individual data from patients were used.
: The author declare that he has no competing interests.