Can Marathons Quickly Damage the Coronary heart?

http://www.medicinenet.com/guide.asp?s=rss&k=DailyHealth&a=174903
Can Marathons Quickly Damage the Coronary heart?
Title: Can Marathons Quickly Damage the Coronary heart?
Class: Well being Information
Produced: ten/31/2013 twelve:36:00 PM
Final Editorial Evaluation: eleven/one/2013 twelve:00:00 AM