Kirby, Kimberly C <br/><br/>
Randomized clinical trial examining duration of voucher-based reinforcement therapy for cocaine abstinence.  [electronic resource] 

 -  Drug and alcohol dependence  Oct 2013 
 - 639-45 p.  digital 
<br/><br/> Publication Type: Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural 
<br/><br/><label>ISSN: </label>1879-0046 
<br/><br/><label>Standard No.: </label>10.1016/j.drugalcdep.2013.04.015  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Cocaine-Related Disorders--psychology<br/>Female<br/>Follow-Up Studies<br/>Humans<br/>Male<br/>Middle Aged<br/>Reinforcement, Psychology<br/>Substance Abuse Treatment Centers--methods<br/>Temperance--psychology<br/>Time Factors<br/>Token Economy