The Wall Street Journal's Health Blog reports that the Massachusetts legislature has upheld a law that restricts pharmaceutical and medical device companies from giving gifts to doctors. The blog's Katherine Hobson says there had been a push in June to have the ban repealed on the grounds that it "had negative economic effects and resulted in perceived hostility to the health-care industry." However, Hobson says, the ban stands.

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Direct-to-consumer genetic testing companies have offered to test families separated at the southern US border, but that raises ethical issues.

CNBC reports that confirming a positive result from 23andMe's BRCA health report can be expensive.

The New York Times reports on a project to develop a tree DNA database to uncover illegal logging.

In PLOS this week: links between gut microbiome and colorectal cancer mutations, targeted sequencing uncovers genetic susceptibilities to epilepsy in Koreans, and more.