“…Interventions that increased the availability of primary care sites (Kerr et al, 2004) and colinked substance abuse treatment with medical treatments (O'Toole, Strain, Wand, McCaul, & Barnhart, 2002) while increasing ambulatory care utilization have not always been able to reduce ED use. Homeless substance-using adults were able to triage specific hypothetical health needs and scenarios to different care sites, but it is not clear whether this holds true for actual events or for nonhomeless persons (O'Toole, Gibbon, Hanusa, & Fine, 1999a).…”