Preliminary results of a screening program for anal cancer and its precursors for HIV-infected men who have sex with men in Vigo-Spain

by Mauricio Iribarren-Díaz, Antonio Ocampo-Hermida, Joaquín González-Carreró-Fojón, Rebeca Longueira-Suárez, Alberto Rivera-Gallego, Enrique Casal-Núñez, Antón Ocampo-Álvarez, Edward R. Cachay