This story originally appeared in Biocommerce Week, a newsletter that has been discontinued.
Roche is pressing forward with its plans to acquire Ventana Medical Systems in a hostile takeover, but company officials said last week that they would not increase their offer of $75 per share.

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CNN reports that researchers have tied a new variant to opioid addiction risk.

Organoids derived from patients' tumors may help determine what chemotherapy treatment patients would benefit from, according to New Scientist.

An initiative from GenomeAsia 100K hopes to increase the number of South Asians in genetic research, according to NBC News.

In Science this week: genomic analysis of ancient and modern horses indicates population turnover, and more.