Does use of 'non-trial' cessation support help explain the lack of effect from offering NRT to quitline callers in a RCT?

Citation

Docherty G, Lewis S, McEwen A, Bauld L & Coleman T (2014) Does use of 'non-trial' cessation support help explain the lack of effect from offering NRT to quitline callers in a RCT?. Tobacco Control, 23 (6), pp. 524-525. https://doi.org/10.1136/tobaccocontrol-2013-051107

Abstract
Letter

Notes
Output Type: Letter

Journal
Tobacco Control: Volume 23, Issue 6