Article History
Received: 24 March 2017
Accepted: 24 July 2017
First Online: 6 August 2017
Compliance with ethical standards
:
: An information sheet was given to patients, and signed informed consent was required for inclusion in the study. A relative or legal representative of patients with cognitive deterioration impeding conprehension and acceptance of the study provided authorization for study inclusion. The Ethical Committee of Clinical Investigation at Hospital Clinic of Barcelona approved the study.
: The authors declare that they have no conflict of interest.