Funding for this research was provided by:
Medical Research Council (MR/R022747/1)
Received: 25 July 2022
Accepted: 13 September 2022
First Online: 19 September 2022
: This study received the approval from the Research Ethics Committees of the Federal University of Maranhão (CEP UFMA 3.051.875), and from the Faculty of Medicine of the University of São Paulo (CEP FMUSP 3.136.269), and was approved by Brazil’s Federal Council of Medicine, that provided the list of physicians registered with the council of medicines in the two states, and the respective telephone contact details.All the physicians contacted via telephone were informed beforehand of the objectives of the survey, and their consent was verbally obtained to participate in the survey. All the forms and questionnaires were anonymized through a double coding system organized by the Faculty of Medicine of the University of São Paulo.
: Not applicable.
: The authors declare that they have no competing interests.