Learn about Abraham Lincoln (sixteenth president, 1861–1865) through museum art and artifacts from across the Smithsonian. The Smithsonian's National Portrait Gallery collection reflects many faces of ...

The heat-related RR at the 99th percentile raised from 1·21 (1·16–1·26) for people aged 65 years to 1·27 (1·22–1·32) for people aged 85 years. The curve predicted for people aged 45 years was much ...