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WEST PALM BEACH, Fla (AP) - A U.S. District judge in West Palm Beach has sentenced a South Florida doctor to more than six years in prison on money laundering charges related to her prescription of millions of oxycodone pills and other narcotics. The case against 43-year-old Cynthia Cadet was part of a broad 2010 investigation into "pill mill" clinics. The 74-year-old doctor Joseph Castronuovo received a year and a half behind bars.

Both doctors plan to appeal Friday's ruling. Last year a federal judge cleared the doctors of causing patients to fatally overdose.

Both doctors were involved with the American Pain clinics in Broward and Palm Beach counties and were the only physicians in the case to rejected plea deals.

Prosecutors said the clinics were one of the nation's biggest illicit prescription drug operations.

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