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Roger Roffman
Roger Roffman is a Professor Emeritus of Social Work at the University of Washington and has been part of a federally-funded, twenty-five year study/counseling initiative for marij...lihat lebih banyakRoger Roffman is a Professor Emeritus of Social Work at the University of Washington and has been part of a federally-funded, twenty-five year study/counseling initiative for marijuana dependent teens and adults. He is a graduate of Boston University, the University of Michigan, and the University of California at Berkeley. Roger lives in Seattle.lihat lebih sedikit