How am I going to find alcohol rehabilitation centers in Gainesville, Texas?

I need to do this for a friend of mine who is asking for my help. He has been dependent upon alcohol for months now, but it’s only recently that he has learned to admit this to himself. I really want to help him since he has always been there for me when I needed him in the past. I don’t know how to find alcohol rehabs, though. Please help.

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