Three out of four published systematic reviews on COVID-19 treatments were not registered and one-third of those registered were published: a meta-research study
| Autor: | Siemens, Waldemar, Nothacker, Julia, Stadelmaier, Julia, Meerpohl, Joerg J., Schmucker, Christine |
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| Zdroj: | In Journal of Clinical Epidemiology December 2022 152:36-46 |
| Databáze: | ScienceDirect |
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