title: [Is the habit of smoking crack becoming widespread in Spain among heroin users?].
authors.forename: G
authors.initials: G
authors.lastname: Barrio Anta
authors.forename: L
authors.initials: L
authors.lastname: de la Fuente de Hoz
authors.forename: M J
authors.initials: MJ
authors.lastname: Bravo Portela
authors.forename: C
authors.initials: C
authors.lastname: Colomo Gómez
mesh_terms: D000328:Adult; D016578:Crack Cocaine; D003625:Data Collection; D005260:Female; D006556:Heroin Dependence / Q000150:complications / Q000453:epidemiology*; D006801:Humans; D008297:Male; D009293:Opioid-Related Disorders / Q000150:complications / Q000453:epidemiology*; D015995:Prevalence; D013030:Spain / Q000453:epidemiology
chemical_list: D016578:Crack Cocaine
vernacular_title: Está extendiéndose en España el hábito de fumar crack entre los consumidores de heroína?