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(2016).

<a href="https://datacompass.lshtm.ac.uk/cgi/users/home?screen=EPrint::View&amp;eprintid=361"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Clinical code list - Smoking codes.</xhtml:em></a>

[Dataset].


London School of Hygiene &amp; Tropical Medicine, London, United Kingdom.


    <a href="https://doi.org/10.17037/DATA.168" target="_blank">10.17037/DATA.168</a>.