More than 200 people braved the waters of the chilly Boulder County Reservoir in an effort to raise money for the American Cancer Society for the 37th annual Polar Plunge. Participants raised a total of $30,000 during the event.

Here are AI in Healthcare’s top 10 AI and clinical innovation stories from 2018.

Healthcare stakeholders dealt with a slurry of new regulations, policy shifts and mega deals across the industry in 2018. After a whirlwind of a year, we’ve rounded up our most popular stories from 2018.

John Giannandrea has been named Apple’s senior vice president of machine learning and AI strategy, the company announced Thursday.

CMS has finalized changes to the Medicare Shared Savings Program (MSSP) that “dramatically redesigns and sets a new direction” for Medicare accountable care organizations (ACOs). The final rule, as outlined in the proposed rule announced in August, will force ACOs to take on more risk at a quicker pace.

Minnesota-based multinational conglomerate 3M has acquired speech recognition software developer M*Modal for $1 billion, according to a report by the Pittsburgh Post-Gazette. M*Modal provides healthcare technology and conversational AI-powered systems for transcribing doctors’ verbal notes.

After a delay, Cigna has closed its $67 billion acquisition of Express Scripts, the company confirmed on Dec. 20.

Women living with chronic health problems tend to put off screening for breast cancer, possibly due to treatment fatigue, according to a study conducted at Massachusetts General Hospital and published online Dec. 19 in the Journal of Women’s Health.