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Article History

Received: 7 January 2020

Accepted: 25 June 2020

First Online: 16 July 2020

Ethics approval and consent to participate

: This study is approved by the Clinical Research Ethical Committee at each hospital; Comité Ético Hospital Clinic Barcelona (HCB/2017/0499), Comité Ético de Investigación Hospital Puerta de Hierro Majadahonda de Madrid (H.U.P.H.: P.I.: 149/17), Comité Ético de Investigación Clínica de Cantabria IDIVAL (2017.241) and Comité de Ética Navarra (Pyto2017/39). Bearing in mind participants will present dementia or cognitive impairment, they will express their willingness to participate accompanied by a family member, caregiver or legal guardian. An information sheet will be provided to inform participants about the purpose of the study and a consent form will be signed by each participant prior to data collection. This study follows Declaration of Helsinki guidelines (World Medical Association, 2013). Participants will be able to withdraw from the study at any time. All data will be treated following UE Regulation 2016/679 of the European Parliament and Council of April 27th 2016 in relation to handling of personal data and the Organic Law 3/2018 of 5th December of Personal Data protection and digital rights warranty.

: Not applicable.

: The authors declare that they do not have competing interests.