VanderWeele, Tyler J <br/><br/>
Causal directed acyclic graphs and the direction of unmeasured confounding bias.  [electronic resource] 

 -  Epidemiology (Cambridge, Mass.)  Sep 2008 
 - 720-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1531-5487 
<br/><br/><label>Standard No.: </label>10.1097/EDE.0b013e3181810e29  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bias<br/>Causality<br/>Confounding Factors, Epidemiologic<br/>Humans<br/>Models, Statistical