1.   Government fraud investigators are trying to unravel a widening scheme in which phony medical bills using the names of unsuspecting patients and doctors are being submitted to private insurers.

2.   If that proportion holds up in larger studies, it could translate to hundreds of thousands of unsuspecting patients with valve defects of unknown significance.

3.   Once a hearing committee has found a doctor incompetent or negligent and ordered his license revoked, that fact should be announced as a warning to unsuspecting patients.

4.   Phony and adulterated versions can trigger allergic reactions or cause dangerous interactions with other drugs, health officials said, harming unsuspecting patients.

5.   Phony and adulterated versions of drugs can trigger allergic reactions or cause dangerous interactions with other drugs, health officials said, harming unsuspecting patients.

6.   The General Accounting Office said criminals often used the names of unsuspecting patients and doctors on the claims they filed with Medicare and Medicaid.