RT Journal Article SR Electronic T1 Interpreting negative tests when assessing cancer risk JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 398 OP 398 DO 10.3399/bjgp21X716873 VO 71 IS 710 A1 Pawan K Randev YR 2021 UL http://bjgp.org/content/71/710/398.2.abstract AB