RT Journal Article SR Electronic T1 Helping GPs to diagnose children’s cancer JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP bjgp21X715241 DO 10.3399/bjgp21X715241 A1 David A Walker YR 2021 UL http://bjgp.org/content/early/2021/02/22/bjgp21X715241.abstract AB