PT - JOURNAL ARTICLE AU - Brian H Willis TI - The diagnostic value of symptoms for colorectal cancer in primary care AID - 10.3399/bjgp11X583128 DP - 2011 Jul 01 TA - British Journal of General Practice PG - 440--441 VI - 61 IP - 588 4099 - http://bjgp.org/content/61/588/440.3.short 4100 - http://bjgp.org/content/61/588/440.3.full SO - Br J Gen Pract2011 Jul 01; 61