K Shannon, T Kerr, B Marshall, K Li, R Zhang, S. A Strathdee, M. W Tyndall, J. G. S Montaner and E. Wood
Archives of Pediatrics and Adolescent Medicine 164 ( 1 ): 61 - 65 , 2010
C. T Bautista, C. S Todd, A. M. S Abed, B. A Botros, S. A Strathdee, K. C Earhart, N Safi and P. T. Scott
Journal of Public Health 32 ( 3 ): 336 - 341 , 2010