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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 | 48 |
Januar 2025 | Februar 2025 | März 2025 | April 2025 | Mai 2025 | Juni 2025 | Juli 2025 | |
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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 | 1 | 3 | 3 | 2 | 2 | 4 | 0 |
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2023_Holst_etal.pdf | 74 |