Friends renew concerns about Barton's health
Mischa Barton's friends fear her partying could jeopardise her rehabilitation and health.
The former 'O.C.' actress - who was placed under involuntary psychiatric hold at Los Angeles' Cedars-Sinai Medical Center last month - has infuriated her close pals by partying at the All Points West music festival in New York just days after her release from hospital.
