ER/PgR

CAP and ASCO issued new guidelines to improve accuracy of immunohistochemistry-based ER and PgR testing in breast cancer. The groups estimate that between 10 percent and 20 percent of IHC test results throughout the world may be inaccurate, yielding false-positive or false-negative results.

In a survey, about half of Canadian government scientists say they still feel as though they cannot speak freely, ScienceInsider reports.

Clinicians in China are moving ahead with a number of CRISPR trials, NPR reports, as the US embarks on its first.

The Atlantic reports that biohacker Josiah Zayner regrets injecting himself with the CRISPR gene-editing tool on stage.

In Nature this week: genomic approaches applied to study Neolithic and Bronze Age Europeans, and more.