Perineal cutaneous appendage and anorectal malformation Julio César Moreno Alfonso, Ada Molina Caballero, Alberto Pérez Martínez

Bead-like lesion at perineal region Juan Pablo Velasco-Amador, Israel Pérez-López, Ricardo Ruiz-Villaverde

Systematic review of the validity of urine cultures collected by sterile perineal bags C. Ochoa Sangrador, A. Pascual Terrazas