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Relationship between follow-up rates and treatment outcomes in substance abuse research: more is better but when is "enough" enough?
Michelle L. Hansten, Lois Downey, David B. Rosengren, Dennis M. DonovanVolume:
95
Year:
2000
Language:
english
Pages:
14
DOI:
10.1046/j.1360-0443.2000.959140310.x
File:
PDF, 164 KB
english, 2000