What Can Anyone Tell Me About White Deer Run Rehab Facility?

My 20 year old son desparately needs drug rehab as well as psych help ….after doing alot of research on alot of facilities we are going to try and convince him to check himself in to White Deer Run in Pennsylvania …..he needs help now, before its too late……any information anyone can give me to help me know this is a good choice would be so appreciated.
He needs a dual diagnosis program and many of the drug rehabs don’t offer that…..