Walker, Neil
Yang, Yaling http://orcid.org/0000-0002-9529-1685
Kiparoglou, Vasiliki
Pokhrel, Subhash
Robinson, Hayley
van Woerden, Hugo
Funding for this research was provided by:
National Institute for Health Research
Article History
Received: 31 December 2016
Accepted: 7 March 2018
First Online: 15 March 2018
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: Not applicable.
: SP is associate editor of BMC Health Service Research. HR works for Quit-51 who provided the data which were analysed in this work. Apart from this, the authors declare no competing interests.
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