Ключевые слова: abuse, addiction, adult, arrest, background, bad, caucasian, cocaine, concept, crack, crime, dangerous, death, dependency, depression, disease, dosage, dose, drug, floor, forbidden, habit, harmful, health, heroine, illegal, illness, injection, junkie, lifestyle, male, man, medicine, narcotic, need, opiate, overuse, person, problem, risk, sick, sitting, syringe, toxic, unhealthy, wall, withdrawal, young,