In JAMA this week, US researchers report a systematic review of the benefits and harms of CT screening for lung cancer. The team reviewed the available literature and found evidence in one large study of 53,454 patients that suggests that CT screening results in significantly fewer lung cancer deaths. About 20 percent of individuals screened had positive results requiring some follow-up, and about 1 percent of individual had lung cancer, the team says.

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Researchers describe a way to share data while keeping it secure, Agence France Presse reports.

In Science this week: genetic mutations typically associated with esophageal cancer are common in older, healthy individuals, and more.

India's Council of Scientific and Industrial Research has a new director-general, according to ScienceInsider.

A new study links more than a hundred genes to autism spectrum disorder, Discover's D-brief blog reports.