The United Kingdom has made changes to its student visa system that will limit the number of foreign students studying in Britain, reports The Chronicle of Higher Education. In a statement, the UK Home Office says the aim of the change is to limit abuse of the system and to protect the "best and brightest" students.

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Researchers test gene therapy targeting a different cancer protein in a new trial, the New York Times reports.

Pennsylvania State University researchers found that salivary microRNAs could predict which kids would have longer concussion symptoms, according to NPR.

The Associated Press reports Alex Azar, the new Department of Health and Human Services secretary nominee, made millions of dollars as a pharmaceutical executive.

In PNAS this week: immune profiling of breast cancer, transposable element patterns in rice, and more.