A protocol for the economic evaluation of the smoking Cessation in Pregnancy Incentives Trial III (CPIT III).
Nicola McMeekinLesley SinclairLinda BauldDavid Michael TappinAlex MitchellKathleen Anne BoydPublished in: BMJ open (2020)
TRIAL REGISTRATION NUMBER: ISRCTN15236311; Pre-results (https://doi.org/10.1186/ISRCTN15236311).