title: The unbearable lightness of simplicity.
authors: Department of Criminology, Jagiellonian University, Olszewskiego 2, 31-007, Krakow, Poland.
authors: Krzysztof
authors: K
authors: Krajewski
mesh_terms: D013287:Illicit Drugs; D011619:Psychotropic Drugs
chemical_list: D013287:Illicit Drugs; D011619:Psychotropic Drugs
keywords: Demand for and supply of drugs; drug markets; drug policies; new psychoactive substances; organized crime; risk assessment