FreitasJ.L.G., PereiraP.P. da S., MoreiraK.F.A. and SilvaA.D. 2019. Prevalence of no condom use among undergraduates and post-graduates of a public university in Northern Brazil. Electronic Journal Collection Health. 25 (Jul. 2019), e751. DOI:https://doi.org/10.25248/reas.e751.2019.