Defense Secretary of Health Dr. Jonathan Woodson, assistant secretary of defense for health affairs, speaks after attending a panel discussion at the White House Precision Medicine Initiative Summit in Washington, D.C., Feb. 25, 2016. DoD News photo by EJ Hersom SHARE: Download: Full Size (0.64 MB) Tags: White House Precision Medicine Initiative Summit, D.C., president obama, Washington Credit: EJ Hersom VIRIN: 160225-D-HG842-003.JPG Photo Gallery