Incidence of squamous intraepithelial lesions in the anal canal of HIV‐infected men with normal cytology, up to 8 years of follow‐up. Issue 6 (June 2016) - Videla, S; Sirera, G; Ornelas, A; Piñol, M; García‐Cuyás, F; Llatjos, M; Castellá, E; Coll, J; Segundo, C; Clotet, B