[ARTICLE] Drug rehab: What works and what to keep in mind when choosing a private treatment provider
 

Its an article about Australia but I think the points raised are applicable to most countries:

Drug rehab: What works and what to keep in mind when choosing a private treatment provider - ABC News (Australian Broadcasting Corporation)

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I did it all. Inpatient, outpatient, therapy in that order, although not for less time than the article says is ideal. However, I was really committed to all of them.

So far it's working.