Transmission of hepatitis C virus infection among younger and older people who inject drugs in Vancouver, Canada. por Jacka, B, Applegate, T, Poon, A, Raghwani, J, Harrigan, P, DeBeck, K, Milloy, M, Krajden, M, Olmstead, A, Joy, J, Marshall, B, Hayashi, K, Pybus, O, Lima, V, Magiorkinis, G, Montaner, J, Lamoury, F, Dore, G, Wood, E, Grebely, J