In a case-referent study, cases of disease are compared to noncases with respect to their antecedent exposure to a treatment in an effort to determine whether exposure causes some cases of the disease ...

A National Academies of Sciences, Engineering, and Medicine committee is in the process of examining the working definition of Long COVID. Case definitions are sets of rules that allow patients, ...

Please provide your email address to receive an email when new articles are posted on . Using Delphi methodology — “a structured communication technique originally developed as a systematic, ...

A case-control study is a type of medical research investigation often used to help determine the cause of a disease, particularly when investigating a disease outbreak or rare condition. If public ...