Impact of COVID-19 on income, prevention attitudes, and access to healthcare among male clients in a Sexually Transmitted Infections clinic - Rick, Fernanda; Ishigami, Bruno Issao; Figueiroa, Francois Jose; Cahete, Lucas Rafael de Castro; Humar, Renato Chuster H; Jesus, Roberto de; Costa Junior, Marcos A; Benzaken, Adele S; Silva, Vivian Helena Iida Avelino da (Brazilian journal of infectious diseases, 2021)