“…There was a higher concentration of studies in Europe 4,26,29,31,34,35 and the United States 21,25,27,29,31,37 ; Brazil only had two studies 10,22 . In 11 studies 10,23,25,28,29,[31][32][33]36,37 , respondents were men and women concomitantly, others included only women, and there were no studies with men alone.…”