Former Baywatch babe Pamela Anderson has undergone outpatient treatment at UCLA Medical Center for hepatitis C. The 34-year-old actress claims she contracted the potentially fatal disease by sharing a tattoo needle with her ex, Tommy Lee. "He never disclosed it to me during our marriage," she alleges. Lee, however, says he tested negative for the virus on Tuesday. The couple are currently embroiled in a custody battle over their two children. "Her actions... are a clear attack on Tommy," says Lee's rep, "and hopefully she will realize that she is only doing more harm to her children and herself by trying to use the media as a tool to hurt Tommy and their two boys."