title: T4a and t4b colorectal cancer:  what does this mean nowadays?
authors.forename: Eduardo
authors.initials: E
authors.lastname: Garcia-Granero
authors.forename: Matteo
authors.initials: M
authors.lastname: Frasson
authors.forename: Salvador
authors.initials: S
authors.lastname: Pous
authors.forename: Andres
authors.initials: A
authors.lastname: Cervantes
mesh_terms: D015179:Colorectal Neoplasms / Q000473:pathology*; D006801:Humans; D009367:Neoplasm Staging