A bitter and bloody war in Ukraine has devastated the country, further isolated Russia from the West and fueled economic insecurity around the world. President Volodymyr Zelensky of Ukraine met ...

Alexander Vinnik’s release came as an unnamed US citizen was also freed by Russian ally Belarus in a separate deal. Here are the key developments on the 1,085th day of Russia’s full-scale ...

Fighting has raged in Ukraine since Russia launched a full-scale invasion almost three years ago. Russian forces have slowly expanded the amount of territory they control over the past year ...

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A clinical trial is defined by NIH as a research study in which one or more human subjects are prospectively assigned to one or more interventions (which may include placebo or other control) to ...