Julia Hippisley-Cox, Carol Coupland, John Robson, Peter Brindle
Hippisley-Cox J, Coupland C, Robson J, Brindle P.
Derivation, validation, and evaluation of a new QRISK model to estimate lifetime risk of cardiovascular disease: cohort study using QResearch database
BMJ 2010; 341 :c6624
doi:10.1136/bmj.c6624