Baptist Health Center is being sued by a group of doctors who claim the hospital is denying privileges to physicians who have invested in other health facilities. Baptist says the policy is needed to protect the kinds of services it can offer. The group of cardiologists sued in federal court yesterday, claiming the hospital is illegally denying the clinical privileges. The doctors are contesting a policy adopted by Baptist Health trustees in May. The rule denies staff appointments or clinical privileges to any doctor with a financial interest in a competing hospital. The lawsuit claims two doctors have been told they will lose their privileges this month and that privileges for others are threatened. The six doctors who sued are shareholders of Little Rock Cardiology Clinic, which has a minority ownership in Arkansas Heart Hospital. Two of the doctors also directly own shares in the hospital. The lawsuit seeks to have the hospital barred from enforcing the policy and requests compensatory and punitive damages and attorney`s fees.