Data shows CYP2D6 testing in breast tumor tissue can be inaccurate due to loss of heterozygosity, and may have obscured the connection between genotype and tamoxifen response in previous trials.

360Dx reports that the US Centers for Medicare & Medicaid Services would cover next-generation sequencing-based cancer panel tests.

The Washington Post reports that a meteorologist is being considered as presidential science and technology advisor.

In PNAS this week: precision medicine strategy to screen for disease risk, genome evolution in Haemophilus influenzae, and more.

Researchers have developed a PCR-based assay to gauge whether manatees are present in waters.