Fri Nov 13, 12:20 AM ET

A patient rests in the clinic after falling ill during a drug rehabilitation process at the Kunming Municipal Compulsory Rehabilitation Centre in Kunming, Yunnan province November 12, 2009. The Kunming Municipal Compulsory Rehabilitation Centre, who said they are the biggest drug rehabilitation centre in Asia, marks 20 years of its establishment this year with over 3200 patients currently registered. Patients undergo treatments incorporating a strict regime of physical exercises, re-education classes and medication. Picture taken November 12, 2009. REUTERS/Nir Elias (CHINA HEALTH SOCIETY)

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