This Week in PLOS

Scientists from across Italy this week report on their Sanger and next-generation sequencing-based investigation of a series of 116 non-small-cell lung cancer samples. "Our findings suggest that a region in exon 19 is highly unstable in a large proportion of patients carrying EGFR deletions," the authors write in PLOS One.

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Researchers find that historical factors influence which genes are the most highly studied, the Atlantic reports.

The US National Science Foundation's new sexual harassment policy is to go into effect next month, according to Nature News.

Researchers report using genotyping to tie together illegal ivory shipments and trace them back to a handful of cartels, the New York Times reports.

In Nature this week: genomic ancestry analysis of Sardinians, current noncoding mutations in colorectal cancer, and more.