Pacemakers for dogs

In this Thursday, Aug. 5, 2010 photo, resident Nonya Faikpui, left, and fourth-year student Matthew Sharp examine Grommit at Purdue's Small Animal Hospital in West Lafayette, Ind. The 8-year-old yellow Labrador had his pacemaker implanted in 2006 when a vet found a heart problem after Grommit began inexplicably passing out for short durations. AP Photo/Michael Conroy
