… from alcohol and tobacco use to marijuana and cocaine use … that alcohol or tobacco users
and marijuana users seem to be … be introduced to the world of more serious illegal drug use. …

… cigarette use. The objective of this study was to assess the factors associated with e-cigarette
use … to specifically examine the association between alcohol, marijuana and illicit drug use. …

… Based on evidence that any illegal drug use bears health and social risks (Huas et al.,
2008), we also study past 12-month consumption of cannabis and other illegal drugs. Analyses …

… drugs (ie illegal drug use before the use of cannabis) had no effect on the problematic use of
cannabis … the classical sequence (ie cannabis use before the use other illegal drugs), which …

… substance use was reported to be 78 for tobacco, 19 for alcohol, and seven for illegal
drugs … The 12-month prevalence of illegal drug use, as well as projections to the 18- to 64-year-old …

… Recent research indicates that tobacco, alcohol and illegal drug consumption is highly …
Our findings regarding illegal drug use confirm that cannabis is the most consumed illegal drug …

… In the present paper we discuss the involvement of tobacco in the use of alcohol, opioids,
cocaine, and other substances, as well as some of the implications of these observations for …

… alcohol, tobacco and illicit drug use in adolescents and demographic factors associated with
substance use. … about their use and extent of use of alcohol, cigarettes and illegal drugs. …

… in estimating and comparing substance use and related burden … illicit drug use was
defined as use of a substance where consumption has been prohibited by international drug …

… that alcoholic patients use tobacco and other illicit drugs more … of alcohol or drug use are
susceptible to addiction when … the use of opioids to control cancer pain very rarely results in …