In the originally published version of this article, there were instances in which the authors stated that they report imputed prevalence data but, in fact, reported the observed prevalence rates or it remained unclear what they were reporting. This can be misleading for other researchers who aim to work with the data, for example, to conduct a meta-analysis. Therefore, these instances have been clarified in the article itself.
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Vol 7 Issue 4
Table of Contents
“Quit attempts and tobacco abstinence in primary care patients: follow-up of a pragmatic, two-arm cluster randomised controlled trial on brief stop-smoking advice – ABC versus 5As”. Sabrina Kastaun, Wolfgang Viechtbauer, Verena Leve, Jaqueline Hildebrandt, Christian Funke, Stephanie Klosterhalfen, Diana Lubisch, Olaf Reddemann, Tobias Raupach, Stefan Wilm and Daniel Kotz. ERJ Open Res 2021; 7: 00224-2021.
