Funding for this research was provided by:
Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa (UIDB/04650/2020)
Received: 6 August 2021
Accepted: 7 September 2021
First Online: 30 September 2021
: The protocol of this study was submitted and approved by the Ethics Committee of Instituto de Saúde Pública da Universidade do Porto (CE20171), in November 2020. No informed consent was deemed necessary.
: Not applicable.
: The authors declare that they have no competing interests.