http://www.helium.com/knowledge/278859-the-h1n1-vaccine-concern-over-the-use-of-mercury-in-their-preparation.xml Helium.com > Medical Concerns & Issues > The H1N1 vaccine: Concern over the use of mercury in the preparation en-us Copyright Helium.com Tue, 29 Sep 2009 05:37:19 GMT Tue, 29 Sep 2009 05:37:19 GMT