1. University of Alicante; Alicante España
2. Escola Superior de Enfermagem de Lisboa; Lisboa Portugal
3. University of Murcia; Murcia España
4. Institute for Bio-health Research of Murcia (IMIB); Murcia España
5. Nursing and Healthcare Research Unit (Investen-isciii); Carlos III Health Institute; Madrid España
6. University of Edge Hill; Ormskirk Lancashire UK
7. Geriatrics Department; University Hospital of Albacete; Albacete, España
8. Geriatrics Department; Complejo University Hospital of Albacete; Albacete, España
9. Miguel Hernandez University of Elche; Elche España