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Haemmig, RB; Tschacher, W (2001). Effects of high-dose heroin versus morphine in intravenous drug users: a randomised double-blind crossover study. Journal of psychoactive drugs, 33(2), pp. 105-10. Philadelphia, Pa.: Routledge, Taylor & Francis Group 10.1080/02791072.2001.10400475
Haemmig, RB (1995). Harm reduction in Bern: from outreach to heroin maintenance. Bulletin of the New York Academy of Medicine, 72(2), pp. 371-9. New York, N.Y.: New York Academy of Medicine
