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Start Over Formats Still image ✖Remove constraint Formats: Still image Subjects Clinical Trials as Topic ✖Remove constraint Subjects: Clinical Trials as Topic Subjects Ambulatory Care ✖Remove constraint Subjects: Ambulatory Care Subjects Product Surveillance, Postmarketing ✖Remove constraint Subjects: Product Surveillance, Postmarketing Titles The practicing physician and clinical research ✖Remove constraint Titles: The practicing physician and clinical research Copyright Public domain ✖Remove constraint Copyright: Public domain Publication Year 1981 ✖Remove constraint Publication Year: 1981

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