009 OP: THE ROLE OF THE BROKER IN MIXED-METHODS COLLABORATION: A CASE STUDY OF SOCIAL NETWORKS AND RISK PRACTICES AMONG PEOPLE WHO INJECT DRUGS IN THE RURAL UNITED STATES
009 OP: THE ROLE OF THE BROKER IN MIXED-METHODS COLLABORATION: A CASE STUDY OF SOCIAL NETWORKS AND RISK PRACTICES AMONG PEOPLE WHO INJECT DRUGS IN THE RURAL UNITED STATES