Correlation between smoking and lung cancer in US males, showing a 20-year time lag between increased smoking rates and increased incidence of lung cancer.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Cancer_smoking_lung_cancer_correlation_from_NIH.svg" title="File:Cancer smoking lung cancer correlation from NIH.svg">Cancer_smoking_lung_cancer_correlation_from_NIH.svg</a>: <a href="//commons.wikimedia.org/w/index.php?title=User:Sakurambo&amp;action=edit&amp;redlink=1" class="new" title="User:Sakurambo (page does not exist)">Sakurambo</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Nessa_los" title="User:Nessa los">Nessa los</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Nessa_los" title="User talk:Nessa los"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Cancer_smoking_lung_cancer_correlation_from_NIH.svg" title="File:Cancer smoking lung cancer correlation from NIH.svg">Cancer_smoking_lung_cancer_correlation_from_NIH.svg</a></li></ul>