A potential syndemic effect associated with symptoms of depression among men who have sex with men
Guimarães, Mark D.C.; McKinnon, Karen; Dourado, Inês; Veras, Maria Amelia; Magno, Laio; Almeida, Marcelo; Wainberg, Milton; Kendall, Carl; Kerr, Ligia; Cournos, Francine.