Can Marathons Quickly Damage the Heart?

http://www.medicinenet.com/guide.asp?s=rss&k=DailyHealth&a=174903
Can Marathons Quickly Damage the Heart?
Title: Can Marathons Quickly Damage the Heart?
Group: Wellness News
Developed: 10/31/2013 12:36:00 PM
Previous Editorial Assessment: 11/1/2013 12:00:00 AM