Contingency Management in Methadone Treatment: The Case for Positive Incentives
2003 ◽
Vol 29
(4)
◽
pp. 759-773
◽
2000 ◽
Vol 58
(1-2)
◽
pp. 55-66
◽
2011 ◽
Vol 57
(5)
◽
pp. 347-352
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