RT Journal Article SR Electronic T1 Are the serious problems in cancer survival partly rooted in gatekeeper principles? JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 661 OP 661 DO 10.3399/bjgp11X606500 VO 61 IS 592 A1 Louisa Polak YR 2011 UL http://bjgp.org/content/61/592/661.1.abstract AB