title: The socioeconomic origin of the students has a major influence on the ability to integrate medical studies.
authors.affiliation: Addiction Research and Treatment Center, Paul Brousse Hospital, AP-HP, Univ Paris Sud-11, 12 Avenue Paul Vaillant-Couturier, Paul Vaillant-Couturier, Villejuif 94800, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Karila
authors.forename: Morgan
authors.initials: M
authors.lastname: Roupret
authors.forename: J R Mie H
authors.initials: JR
authors.lastname: Lef Vre