Robles, E <br/><br/>
The brief abstinence test: voucher-based reinforcement of cocaine abstinence.  [electronic resource] 

 -  Drug and alcohol dependence  Feb 2000 
 - 205-12 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0376-8716 
<br/><br/><label>Standard No.: </label>10.1016/s0376-8716(99)00090-3  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Analysis of Variance<br/>Behavior Therapy--methods<br/>Chi-Square Distribution<br/>Cocaine-Related Disorders--prevention & control<br/>Female<br/>Humans<br/>Male<br/>Methadone--therapeutic use<br/>Narcotics--therapeutic use<br/>Opioid-Related Disorders--psychology<br/>Substance Abuse Detection<br/>Token Economy<br/>Treatment Outcome