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Tatum O’Neal Is Back In Rehab After Cocaine Relapse

By:Radar Staff

Feb. 29 2012, Published 2:30 p.m. ET

By Jen Heger - RadarOnline.com Legal Editor

Tatum O'Neal has voluntarily checked back into rehab after having a full-fledged cocaine relapse last month, RadarOnline.com has exclusively learned.

The Academy Award winning actress, 48, has battled an addiction to drugs for most of her adult life. Her younger brother, Redmond, is also currently in rehab, in Southern California for an addiction to heroin. The siblings are not in the same facility.

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"Tatum made the decision to voluntarily check into rehab after having a relapse about a month ago when she began using cocaine again." an insider close to the situation tells RadarOnline.com.

However, Tatum is at a rehab facility that doesn't follow the 12 step AA model, which doesn't bode well for her success, according to the source.

"Tatum is doing really, really bad at the facility she is at. Tatum isn't at a 12 step based treatment program, and that is a huge problem because someone with Tatum's addiction needs to be at a rehab facility like Betty Ford or Cirque Lodge which adhere to the 12 step model,” the source says. “Tatum is essentially in denial about how bad her addiction is. Tatum is refusing to embrace the 12 step AA model to get sober.”