Received: 1 April 2018
Accepted: 17 September 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: The protocol and the consent forms of the study were evaluated and approved by the Ethics Committee of the University School of Medicine in accordance with Helsinki declaration. All patients and control subjects gave their verbal consent, and accepted the collection of 5 ml of blood. The Ethics Committee considered the verbal consent as appropriate since most patients preferred not to give a written consent. It should be specified that our intervention with patients was limited to samples’ collection.
: Not applicable.
: The authors declare that they have no competing interests.