Funding for this research was provided by:
Received: 21 October 2020
Accepted: 7 June 2021
First Online: 22 June 2021
: The PNS was approved by Brazil’s National Research Ethics Committee (Comissão Nacional de Ética em Pesquisa, CONEP) with the National Health Council (Conselho Nacional de Saúde) Resolution No. 466/12 (No. 328159, June 26th, 2013), and all participants signed a free and informed consent at interview.
: Not applicable.
: The authors declare that they have no competing interests.