Angie Louden's son, Landen Summerford, died after heart surgery at St. Mary's Medical Center.
The hospital with a serious heart problem
The mortality rate for babies having heart surgery at St. Mary's Medical Center was three times the national average from 2011-2013
07:37 - Source: CNN
St. Mary's Investigation 5 videos
Angie Louden's son, Landen Summerford, died after heart surgery at St. Mary's Medical Center.
The hospital with a serious heart problem
07:37
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- Source: CNN
St. Mary's Medical Center
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