Efficacy of motivating short interventions for smokers in primary care (COSMOS trial): study protocol for a cluster-RCT.

Thomas Grischott Oliver Senn Thomas Johannes Rosemann Anja Frei Jacques Cornuz Eva Martin-Diener Stefan Neuner-Jehle

Published in: Trials (2019)

ISRCTN, ISRCTN38129107 . Registered on 2 October 2017.

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