Barack Obama has finished his first medical checkup as president and knows when he's supposed to go see the doctor again _ when he's 50, according to AP. The 48-year-old Obama had a physical examination on Sunday at the National Naval Medical Center in Bethesda, Maryland. His last one was in January 2007, when he was an Illinois senator. White House physician Jeffrey Kuhlman and a team of specialists conducted the exam. The White House is expected to release results later Sunday. The president was told to come back in August 2011 _ after he hits the half-century mark _ for his next checkup. Obama also met with 12 members of the military who were receiving treatment at the medical center for injuries they suffered while serving in Iraq or Afghanistan. -- SPA