Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (reference UIDB/4255/2020)
H4A Primary Healthcare Research Network scholars programme for support of research (Not applicable)
Text and Data Mining valid from 2020-04-29
Received: 28 June 2019
Accepted: 14 April 2020
First Online: 29 April 2020
Ethics approval and consent to participate
: This study was approved by the Health Ethics Committee of the Centro Hospitalar de São João/Faculdade de Medicina da Universidade do Porto (reference: 164–19). The informed consent form to be given to the study participants was also approved by this Committee.
: Not applicable.
: The authors declare that they have no competing interests.