“…In Tijuana alone, it has been estimated that a population of approximately 10,000 people who inject drugs (PWID) is beset by severe drug-related harms ((Beletsky, Lozada, et al, 2013; Brouwer et al, 2012; Brouwer et al, 2006; Kori, Roth, Lozada, Vera, & Brouwer, 2013; Patricia et al, 2008; Pollini et al, 2010; Strathdee et al, 2005; Ulibarri et al, 2013; Volkmann et al, 2011). A substantial proportion of this population is believed to be opioid-dependent (Strathdee et al, 2005; Strathdee, Magis-Rodriguez, Mays, Jimenez, & Patterson, 2012).…”