[Modification in Ayre's brush; cleaning of the brush].
D003107:Colorectal Surgery / Q000295:instrumentation*; D003581:Cytodiagnosis / Q000295:instrumentation*; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis*
Modificación al cepillo de Ayre, limpieza del cepillo.