Frequency of multiple changes to prespecified primary outcomes of clinical trials completed between 2009 and 2017 in German university medical centers: A meta-research study

Title
Frequency of multiple changes to prespecified primary outcomes of clinical trials completed between 2009 and 2017 in German university medical centers: A meta-research study
Authors
Keywords
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Journal
PLOS MEDICINE
Volume 20, Issue 10, Pages e1004306
Publisher
Public Library of Science (PLoS)
Online
2023-11-01
DOI
10.1371/journal.pmed.1004306

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