Why do we see colors in a black-and-white top?

When a pattern drawn only in black and white is rotated, people sometimes perceive colors that are not actually present. This phenomenon, known as "subjective color," has been studied for approximately 200 years as one of ...

France recalls rare disease drug Tavneos after deaths

A drug called Tavneos, used to treat rare autoimmune diseases, will be pulled from shelves in France, the country's medicine watchdog said Wednesday, after it was linked to 20 deaths in Japan.

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