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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 | 10 |
January 2024 | February 2024 | March 2024 | April 2024 | May 2024 | June 2024 | July 2024 | |
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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 | 0 | 0 | 0 | 0 | 0 | 9 | 1 |
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2023_Holst_etal.pdf | 12 |