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Data Collection and Quality Control

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Fundamentals of Clinical Trials

Abstract

No study is better than the quality of its data. Data in clinical trials are collected from several sources – interviews, questionnaires, participant examinations, or laboratory determinations. Also, data that have been collected and evaluated by someone outside the study may be used in a trial; for example, diagnoses obtained from death certificates or hospital records.

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Author information

Authors and Affiliations

  1. Bethesda, MD, USA

    Lawrence M. Friedman

  2. School of Medicine, Wake Forest University, Winston-Salem, NC, USA

    Curt D. Furberg

  3. Department of Biostatistics & Medical Informatics, University of Wisconsin, Madison, WI, USA

    David L. DeMets

Authors
  1. Lawrence M. Friedman
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  2. Curt D. Furberg
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  3. David L. DeMets
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Corresponding author

Correspondence to Lawrence M. Friedman .

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© 2010 Springer New York

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Friedman, L.M., Furberg, C.D., DeMets, D.L. (2010). Data Collection and Quality Control. In: Fundamentals of Clinical Trials. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-1586-3_11

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