In this Monday, March 11, 2013 photo, Dr. Jorge Betancor, a Miami cardiologist, uses a computer simulation to learn how to perform an artery-opening procedure through the arm, at an American College of Cardiology conference in San Francisco. Many problems that used to require open-heart surgery now can be treated with minimally invasive procedures. (AP Photo/Jeff Chiu)

Associated Press
In this Monday, March 11, 2013 photo, Dr. Jorge Betancor, a Miami cardiologist, uses a computer simulation to learn how to perform an artery-opening procedure through the arm, at an American College of Cardiology conference in San Francisco. Many problems that used to require open-heart surgery now can be treated with minimally invasive procedures. (AP Photo/Jeff Chiu)
In this Monday, March 11, 2013 photo, Dr. Jorge Betancor, a Miami cardiologist, uses a computer simulation to learn how to perform an artery-opening procedure through the arm, at an American College of Cardiology conference in San Francisco. Many problems that used to require open-heart surgery now can be treated with minimally invasive procedures. (AP Photo/Jeff Chiu)
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