National observational study about the surgical treatment of anal fistula: Does the kind of hospital modify the results? Oscar Cano-Valderrama; Carlos Cerdán-Santacruz; Pilar Fernández Veiga; Tamara Fernández-Miguel; Elena Viejo; Álvaro García-Granero; Teresa Calderón; María L. Reyes;

Comparison of different methods to manage supralevator rectal opening in anal fistulas: A retrospective cohort study Pankaj Garg; Geetha R Menon; Baljit Kaur;

Results at one year of the TROPIS technique in the treatment of complex anal fistula María Luisa Reyes Díaz; Fátima Hinojosa Ramirez; Irene María Ramallo Solís; Rosa María Jiménez Rodríguez; Jose Pintor Tortolero; Ana María García Cabrera; Jorge M. Vázquez Monchul; Fernando de la Portilla de Juan;