At Walter Reed, Oscar Olguin and his family were visited by President Bush and first lady Laura Bush. But Olguin says that when he left the hospital, he had to fend for himself. Courtesy of Oscar Olguin hide caption

itoggle caption Courtesy of Oscar Olguin

Gen. John Joseph Pershing's room at Walter Reed Army Medical Center, the military's flagship hospital. The center is closing its doors after treating hundreds of thousands of America's war wounded, and several presidents. Luis Alvarez/AP hide caption

itoggle caption Luis Alvarez/AP

Pharmacist Kristy Hennessee administers a vaccination against whooping cough at a Walgreen's pharmacy in Pasadena, Calif. last year. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images

The standard technique for measuring blood pressure may not be good enough. /iStockphoto.com hide caption

itoggle caption /iStockphoto.com

Pakistani NGO workers protest at a rally on World AIDS Day in Peshawar in 2006. Tariq Mahmood/AFP/Getty Images hide caption

itoggle caption Tariq Mahmood/AFP/Getty Images