RT Journal Article SR Electronic T1 Tattooing will benefit patients with colorectal cancer JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP s77 OP s77 DO 10.7861/clinmed.20-2-s77 VO 20 IS Suppl 2 A1 Nuno Rodrigo Costa YR 2020 UL http://www.rcpjournals.org/content/20/Suppl_2/s77.abstract