Cigna Corp. in an SEC filing last week discussed...

...how its business segments have changed following its completed acquisition of Express Scripts Holding Co., one of the country's leading pharmacy benefits managers. The new Integrated Medical segment includes all U.S. commercial operations and government health programs, plus pharmacy, dental and vision benefits. Cigna currently serves 16,163,991 medical lives, 2.66 million of them in risk-based health plans.