A subset of Alzheimer's cases may be caused by two copies of a single gene, new research shows
UN chief to meet Ukrainian president in Kyiv
CPPCC National Committee Holds Gathering to Ring in New Year, Xi Jinping Delivers Important Speech
UN chief calls for restraint after Iran's retaliatory attacks on Israel
Russian journalist arrested for years
China calls for efforts to promote Colombia's national development
Hungarian parliament approves Finland's accession to NATO
Sudanese army says will help evacuate foreign nationals
Dylan Cease says last year with White Sox 'wasn't enjoyable in really any way'
China calls for intensified diplomatic efforts to end Ukraine crisis