Tuesday, April 15, 2008

Citation

"Tetralogy of Fallot." American Heart Assocation. 2008. 22 Apr 2008 .

"What is Tetralogy of Fallot?." National Blood Institute of Health. 2007. 22 Apr 2008 .

"Sex, Pregnancy and Birth Control." American Heart Assocation. 2008. 23 Apr 2008 .
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