TY - STAND AU - R. Lawrenson AU - J. Todd AU - G. Leydon AU - T. Williams AU - R. Farmer BT - Br J Clin Pharmacol M1 - 6 PY - 2000 SP - 591 EP - 6 T2 - Br J Clin Pharmacol TI - Validation of the diagnosis of venous thromboembolism in general practice database studies VL - 49 SN - 0306-5251 (Print) 0306-5251 ER -