Cardiologist Dr. Douglas Horstmanshof places a model of an LVAD (left ventricular assistance device) against Pam Golden's chest to show the size of the device when Golden was in Oklahoma City this week. Golden, of Longtown, had an LVAD implanted in her body by Horstmanshof to improve her circulation system. Photographed at Integris Baptist Hospital on Monday, Jan. 14, 2013. Photo by Jim Beckel, The Oklahoman