Affairs (VA) system. Quality & Safety in Health Care, 2008;17(1):37-46. According to recent research from the United States, "Adverse drug events (ADEs) account for considerable... adverse events and ''potential'' adverse events are reviewed using root cause analysis (RCA).""This study characterised RCA reports associated with ADEs to determine what actions VA RCA... teams took to reduce the number or severity of ADEs, and to evaluate which actions were effective in doing so. Every medication-related RCA submitted to the VA National Center...