LIFT procedure for posterior fistula-in-ano. Are outcomes good enough? A systematic review and meta-analysisis of observational studies Carlos Placer Galán; Ignacio Aguirre; Tania Pastor; Ane Etxart; Jose María Enriquez Navascués;

Anatomic sphincteroplasty with combined reconstruction of internal and external anal muscles in the anal incontinence surgical treatment Juan García-Armengol; Carolina Martínez-Pérez; José V. Roig-Vila;

Results at one year of the TROPIS technique in the treatment of complex anal fistula María Luisa Reyes Díaz; Fatima 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;