http://www.helium.com/knowledge/285085-understanding-the-good-and-bad-types-of-cholesterol-hdl-and-ldl.xml Helium.com > Hypertension & High Cholest > Understanding the good and bad types of cholesterol: HDL and LDL en-us Copyright Helium.com Thu, 15 Oct 2009 13:07:25 GMT Thu, 15 Oct 2009 13:07:25 GMT