TY - JOUR A1 - Wagner, K.D. A1 - Pollini, R.A. A1 - Patterson, T.L. A1 - Lozada, R. A1 - Ojeda, V.D. A1 - Brouwer, K.C. A1 - Vera, A. A1 - Volkmann, T.A. A1 - Strathdee, S.A. T1 - Cross-border drug injection relationships among injection drug users in Tijuana, Mexico Y1 - 2011 DO - 10.1016/j.drugalcdep.2010.08.009 JF - Drug and Alcohol Dependence VL - 113 IS - 2–3 ER -