Involvement of pharmaceutical companies at scientific meetings.
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D002309:Cardiology / Q000191:economics / Q000941:ethics; D016265:Conflict of Interest; D003226:Congresses as Topic / Q000191:economics / Q000941:ethics / Q000458:organization & administration; D030881:Disclosure; D004345:Drug Industry / Q000191:economics / Q000941:ethics; D017408:Guidelines as Topic; D006801:Humans; D012109:Research Support as Topic; D013019:South Africa