Effect of offering different levels of support and free nicotine replacement therapy via an English national telephone quitline: randomised controlled trial

James L. Ferguson, Graeme Docherty, Linda Bauld, Sarah Lewis, Paula Lorgelly, Kathleen Boyd, Andy McEwen, Tim Coleman

BMJ · 2012 · 61 citations · 22 references

DOIFull text

Open access

Abstract

ClinicalTrials.gov NCT00775944.

References

22