Ferraz, D., Dourado, I., Zucchi, E. M., Mabire, X., Magno, L., Grangeiro, A. D., . . . Préau, M. (2021). Effects of the COVID-19 pandemic on the sexual and mental health of adolescent and adult men who have sex with men and transgender women participating in two PrEP cohort studies in Brazil: COBra study protocol. BMJ Open.

Ferraz, Dulce, et al. "Effects of the COVID-19 Pandemic On the Sexual and Mental Health of Adolescent and Adult Men Who Have Sex With Men and Transgender Women Participating in Two PrEP Cohort Studies in Brazil: COBra Study Protocol." BMJ Open 2021.

Ferraz, Dulce, et al. "Effects of the COVID-19 Pandemic On the Sexual and Mental Health of Adolescent and Adult Men Who Have Sex With Men and Transgender Women Participating in Two PrEP Cohort Studies in Brazil: COBra Study Protocol." BMJ Open 2021.