Authors:
Hagan, H
McGough, JP
Thiede, H
Hopkins, SG
Weiss, NS
Alexander, ER
Citation: H. Hagan et al., Volunteer bias in nonrandomized evaluations of the efficacy of needle-exchange programs, J URBAN H, 77(1), 2000, pp. 103-112
Authors:
Hagan, H
McGough, JP
Thiede, H
Hopkins, S
Duchin, J
Alexander, ER
Citation: H. Hagan et al., Reduced injection frequency and increased entry and retention in drug treatment associated with needle-exchange participation in Seattle drug injectors, J SUBST ABU, 19(3), 2000, pp. 247-252
Authors:
Hagan, H
McGough, JP
Thiede, H
Hopkins, SG
Alexander, ER
Citation: H. Hagan et al., Re: "Syringe exchange and risk of infection with hepatitis B and C viruses" - Five of the authors reply, AM J EPIDEM, 151(2), 2000, pp. 207-208
Authors:
Hagan, H
Weiss, NS
Thiede, H
Hopkins, S
McGough, JP
Alexander, ER
Citation: H. Hagan et al., Reply to "Invited commentary: Needle exchange - No help for hepatitis?" byMoss and Hahn, AM J EPIDEM, 149(3), 1999, pp. 217-218