Fate of Clinical Research Studies after Ethical Approval – Follow-Up of Study Protocols until Publication

• Anette Blümle ,

  * E-mail: bluemle@cochrane.de

  Affiliation Institute for Medical Biometry and Statistics, Center for Medical Biometry and Medical Informatics, University Medical Center, Freiburg, Germany

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• Joerg J. Meerpohl,

  Affiliation Institute for Medical Biometry and Statistics, Center for Medical Biometry and Medical Informatics, University Medical Center, Freiburg, Germany

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• Martin Schumacher,

  Affiliation Institute for Medical Biometry and Statistics, Center for Medical Biometry and Medical Informatics, University Medical Center, Freiburg, Germany

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• Erik von Elm

  Affiliation Cochrane Switzerland, Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland

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