Medicine & Life Sciences
Cocaine
100%
Workplace
98%
Psychology Reinforcement
81%
Methadone
69%
Motivation
53%
Opiate Alkaloids
50%
Substance-Related Disorders
44%
Pharmaceutical Preparations
39%
Naltrexone
38%
Urine
34%
Drug Users
34%
Opioid Analgesics
33%
Salaries and Fringe Benefits
31%
Randomized Controlled Trials
28%
Therapeutics
25%
Cocaine-Related Disorders
23%
Education
21%
Poverty
20%
HIV
19%
Unemployment
18%
Heroin
17%
Urinalysis
17%
Injections
16%
Viral Load
14%
Caffeine
14%
Costs and Cost Analysis
11%
Cost-Benefit Analysis
10%
Alcohol Abstinence
9%
Operant Conditioning
9%
Alcohols
9%
Placebos
8%
Armed Conflicts
8%
Appointments and Schedules
8%
Illicit Drugs
8%
Theobromine
8%
Alcoholism
8%
Homeless Persons
7%
Maintenance
7%
Craving
6%
Efficiency
6%
benzoylecgonine
5%
Capsules
5%
Opioid-Related Disorders
5%
Baltimore
5%
Eating
5%
Social Sciences
reinforcement
42%
workplace
37%
drug
35%
contingency
29%
incentive
26%
drug dependence
23%
Clinical Trials
16%
wage supplement
15%
suppression
11%
drug use
11%
training program
10%
unemployment
9%
poverty
9%
induction
7%
conditioning
7%
medication
7%
workstation
6%
behavior analysis
6%
Group
6%
drug abuse
6%
relapse
6%
mood
5%
alcohol
5%
costs
5%
management
5%