TY - STAND AU - J. Hippisley-Cox AU - C. Coupland BT - BMJ Open DO - 10.1136/bmjopen-2013-003482 M1 - 8 PY - 2013 EP - e003482 T2 - BMJ Open TI - Predicting risk of emergency admission to hospital using primary care data: derivation and validation of QAdmissions score VL - 3 SN - 2044-6055 ER -