Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/BD/80389/2011)
Article History
Received: 5 October 2023
Accepted: 18 February 2024
First Online: 29 February 2024
Declarations
:
: The current study was performed in accordance with the Helsinki Declaration of 1964 and its later amendments. Ethical approval was provided by the scientific committee of the Faculty of Psychology and Education Sciences of the University of Porto, by the ethics committee of Centro Hospitalar de Vila Nova de Gaia/Espinho, and by the National Association against Fibromyalgia and Chronic Fatigue Syndrome (MYOS in Portuguese). All the subjects provided written informed consent prior to their participation in this study. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare no competing interests.