TY - STAND AU - C. Sullivan AU - R. Omar AU - G. Ambler AU - A. Majeed BT - Br J Gen Pract M1 - 516 PY - 2005 SP - 529 EP - 33 T2 - Br J Gen Pract TI - Case-mix and variation in specialist referrals in general practice VL - 55 SN - 0960-1643 (Print) 0960-1643 ER -