Selecting studies

Once a search is completed, relevant studies must then be selected without bias. Reviewers usually work independently and document the outcome of all disputed decisions. Some feel that those selecting the trials should be blind to the study's author, source (usually a journal), and the institution where the trial was undertaken. All have potential to bias the study selection. However, such blinding would often involve prohibitive effort. In any event, a systematic review should make explicit the degree of effort made to avoid selection bias at this crucial stage.

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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