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Citation: C. Zinkernagel et al., Onset and pattern of substance use in intravenous drug users of an opiate maintenance program, DRUG AL DEP, 64(1), 2001, pp. 105-109

Authors: Naef, MR Bucher, HC Erb, P Gyr, N Bassetti, S Battegay, M

Citation: Mr. Naef et al., Reduced infections with HIV and hepatitis A during a Swiss intravenous opiate maintenance program, J ACQ IMM D, 21(4), 1999, pp. 349-351