Complex interventions or complex systems? Implications for health economic evaluation.
Shiell
Alan
A
Population Health Intervention Research Centre, University of Calgary, Calgary T2N 4N1, Canada. ashiell@ucalgary.ca
Hawe
Penelope
P
Gold
Lisa
L
D003362:Cost-Benefit Analysis; D004059:Diffusion of Innovation; D011787:Quality of Health Care; D013222:State Medicine / Q000191:economics / Q000458:organization & administration* / Q000592:standards; D006113:United Kingdom