As influenza vaccination is now widely recommended, randomized clinical trials are no longer ethical in many populations. Therefore, observational studies on patients seeking medical care for acute ...
It has been argued that survival bias may distort results in Mendelian randomization studies in older populations. Through simulations of a simple causal structure we investigate the degree to which ...
An ad hoc consensus committee of the National Academies of Sciences, Engineering, and Medicine will conduct an epidemiologic study of the health of veterans who served at Fort McClellan, Alabama, from ...
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