Received: 22 May 2020
Accepted: 12 November 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: This research project with code PI19/403 was approved by the Research Ethics Committee of the Community of Aragon (CEICA, Comité de Ética de la Investigación de la Comunidad de Aragón). Administrative permissions were acquired to access the clinical/personal patient data used and were granted by the head of the Clinical Documentation and Archives Unit, the President of the Research and Innovation Commission and the Director of the hospital. This is a retrospective study and the data were collected under clinical practice conditions, with no additional procedures being performed on patients beyond those necessary for the study of the pathology, so it was not necessary for the patients to sign an additional consent as authorized by the Ethics Committee. Previously, the patients had already signed a written informed consent for the genetic study and in the case of any participant under the age of 16 it was obtained from the parents or legal guardians.
: Not applicable.
: The authors declare that they have no competing interests.