Authors: Neaigus, A Miller, M Friedman, SR Hagen, DL Sifaneck, SJ Ildefonso, G Des Jarlais, DC

Citation: A. Neaigus et al., Potential risk factors for the transition to injecting among non-injectingheroin users: a comparison of former injectors and never injectors, ADDICTION, 96(6), 2001, pp. 847-860