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This resource provides access to clinical practice guideline briefs and scorecards that provide ratings on how the guidelines meet the Institute of Medicine (IOM) standards for trustworthiness. The ECRI assisted the Agency for Healthcare Research and Quality (AHRQ) in maintaining the National Guidelines Clearinghouse before it was shut down. Registration is required and currently free.
The US Preventive Services Task Force is an independent, volunteer panel of experts in disease prevention and evidence-based medicine. The Task Force works to improve all Americans' health by making evidence-based recommendations about clinical preventive services.
Professional organizations create practice guidelines; therefore, many are available through the organization's website. In many cases, this will require you to be a member of the organization to access the guideline. If you can get the guideline information from the website, you can use the information to request a copy through the library's interlibrary loan service.