TY - STAND AU - S. Brilleman AU - S. Purdy AU - C. Salisbury AU - F. Windmeijer AU - H. Gravelle AU - S. Hollinghurst BT - Br J Gen Pract DO - 10.3399/bjgp13X665242 M1 - 609 PY - 2013 SP - 274 EP - 82 T2 - Br J Gen Pract TI - Implications of comorbidity for primary care costs in the UK: a retrospective observational study VL - 63 SN - 0960-1643 ER -