Many U.S. hospitals are postponing scans used to diagnose diseases after a Covid lockdown in China hobbled the main U.S. supplier of an imaging chemical.
Many U.S. hospitals are postponing scans used to diagnose diseases after a Covid lockdown in China hobbled the main U.S. supplier of an imaging chemical.
A 5-year-old Ukrainian girl with a brain tumor was one of several children brought for treatment in the United States after their country was invaded by Russia.