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.

NPR reports that Turkish high school students will no longer study evolution.

Researchers report they sequenced and identified plant species in an "al fresco" laboratory.

An Australian team searches for genetic alterations linked to depression in hopes of developing personalized treatments, the Sydney Morning Herald reports.

In PNAS this week: host contributors to typhoid fever risk, effects of obesity-related variants near TMEM18, and more.