Doctors Assail UnitedHealth's Threat of Fines.

The article reports on a disagreement between United Health Group Inc. and many of the 52,000 physicians in its U.S. network. The disagreement centers on a new policy from the company which threatens to fine doctors for referring patients to out-of-network laboratories for tests. The disagreement has created a public relations problem for the company and a demand from the American Medical Association to rescind the policy.