RT Journal Article SR Electronic T1 Evaluating NHS Direct JF BMJ JO BMJ FD British Medical Journal Publishing Group SP 5 OP 6 DO 10.1136/bmj.319.7201.5 VO 319 IS 7201 A1 Florin, Dominique A1 Rosen, Rebecca YR 1999 UL http://www.bmj.com/content/319/7201/5.abstract AB