Why the question is complex
A systematic review is defined by a question and transparent methods, not by the label on a document. The quality of included studies constrains the conclusions.
A systematic review begins with a focused question and a documented process for finding, selecting, appraising and synthesizing studies. Its conclusions depend on the included evidence.

A systematic review begins with a focused question and a documented process for finding, selecting, appraising and synthesizing studies. Its conclusions depend on the included evidence.
This editorial introduction frames the topic and identifies the questions a full evidence review should address. It is not a systematic review, clinical recommendation or claim that GARC has completed a study on this topic.
Editorial introduction. Detailed evidence review, references, author attribution and publication date are pending.
An editorial framework for examining this subject. Detailed source review and citations remain to be completed.
A systematic review is defined by a question and transparent methods, not by the label on a document. The quality of included studies constrains the conclusions.
Look for protocol, reproducible search, eligibility criteria, screening, appraisal and synthesis plan.
This page identifies questions for further work. It does not establish a clinical recommendation, a measured impact or a GARC research finding. Follow the linked research resources to examine original studies.