Aetna (AET -1.8%) CEO Mark Bertolini says the relationship between health insurers and providers...

|By:, SA News Editor

Aetna (AET -1.8%) CEO Mark Bertolini says the relationship between health insurers and providers has to change, with each side doing what they do best. And if they can worth together, "we'll do far more in reducing health-care costs than anything the Affordable Care Act would do,"  Bertolini tells the WSJ.