Evaluating NHS Stop Smoking Service engagement in community pharmacies using simulated smokers: fidelity assessment of a theory-based intervention.
Sandra JumbeWai Y JamesVichithranie MadurasingheLiz SteedRatna SohanpalTammy K YauStephanie TaylorSandra EldridgeChristopher J GriffithsRobert WaltonPublished in: BMJ open (2019)
ISRCTN16351033.