**Acknowledgements**

This work was financially supported by the project MedElderly [SAICT-POL/23585/2016], funded by Portuguese Foundation for Science and Technology (FCT/MCTES), Portugal 2020 and Centro 2020 grants, and by the project APIMedOlder [PTDC/MED-FAR/31598/2017], funded by FEDER, through COMPETE2020—Programa Operacional Competitividade e Internacionalização (POCI-01-0145-FEDER-031598), and by national funds (OE), through FCT/ MCTES.
