LOS ANGELES — The three adult children of radio host Casey Kasem have filed suit in Los Angeles Superior Court to gain control over his health care.

They say he is suffering from advanced Parkinson’s disease and is being isolated from his children, friends and family members by his wife, Jean.

The petition for conservatorship filed Monday brought a long-running family feud into the courts.

The applicants, are Julie, Kerri and Mike Kasem

Julie, who has a master’s degree in medicine, and her husband, Dr. Jamil Aboulhosn, presented papers signed by her father in 2007 giving them power of attorney over his health care.

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