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The expert body now recognizes the test's ability to predict whether early-stage breast cancer patients will benefit from extended, adjuvant endocrine therapy.

The agency said people can potentially shorten quarantine time and reduce travel-associated contagion risk with PCR or antigen SARS-CoV-2 testing.

During a session at the ASHG 2020 virtual meeting, representatives from both organizations laid out the reasons for their contrasting guidelines.

The guidelines caution that there are "significant limitations" in the interpretation of polygenic risk scores and they should not be used in patient management.


The nationwide study will enroll prostate cancer patients who do and don't meet current guidelines and assess how access to genetic information impacts their care. 

The society recommends routine use of multigene NGS for a handful of metastatic cancers, as well as in the context of clinical trials at academic centers.

The center said because universal testing of students and staff "has not been systematically studied," it is unclear what benefits it may confer.

The updated guidelines now also highlight the use of PCR and next-generation sequencing to determine microsatellite instability. 

Its authors said the guidance provides a focus on how clinicians can get the most efficacy and highest quality results from implementing best practices.

The group said the recommendations aim to standardize and improve warfarin response genotyping assays.