Duplicate title to 
    


    <span class="person">Schmidt, SAJ</span> and <span class="person orcid-person"><a class="citation_browse_link" href="/view/creators/5477a2aff1d3d746d5ba0f887be9640b.html">Langan, S</a><a aria-describedby="tooltip-orcid--0000-0002-7022-7441" href="https://orcid.org/0000-0002-7022-7441" class="orcid" target="_blank"><img class="orcid-icon" src="/images/orcid_id.svg" alt="ORCID logo"/></a></span>  
  

(2019).

<a href="https://datacompass.lshtm.ac.uk/cgi/users/home?screen=EPrint::View&amp;eprintid=1232"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Clinical Code List - Charlson Comorbidity - Read Codes.</xhtml:em></a>

[Dataset].


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


    <a href="https://doi.org/10.17037/DATA.00001232" target="_blank">10.17037/DATA.00001232</a>.