Received: 26 March 2021
Accepted: 5 July 2021
First Online: 14 July 2021
: This protocol study was approved by the Ethics Committee of the Policlinico P. Giaccone Hospital, and all patients provided written informed consent to participate in the study and for sampling and banking of the biological material. The study protocol conforms to the ethical guidelines of the 1975 Declaration of Helsinki, and written informed consent was obtained from all the patients. A statement of ethics approval was obtained using the name of the ethics committee and reference number if appropriate.
: All enrolled patients (or legal parents or guardians for children) provided consent to publish individual patient data.
: All the authors have no competing interests.