Received: 3 December 2020
Accepted: 30 April 2021
First Online: 21 June 2021
: This retrospective study was performed after obtaining approval from the Clinical Research Ethics Committee of the San Carlos Clinical Hospital of Madrid, Spain, reference number C.P. - C.I. 12/152-E. All the patients agreed to participate by signing an informed consent allowing the use their records for research purposes.
: Not applicable
: The authors declare that they have no competing interests.