File:USA spina bifida rates.jpg: Revision history

20 June 2011

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8 June 2011

• curprev 07:2307:23, 8 June 2011‎ S8600021 talk contribs‎ 731 bytes +30‎ →‎USA Spina Bifida Rates
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9 April 2010

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10 August 2009

• curprev 16:0716:07, 10 August 2009‎ MarkHill talk contribs‎ 480 bytes +480‎ In the U.S.A. the Food and Drug Administration in 1996 authorized that all enriched cereal grain products be fortified with folic acid, with optional fortification beginning in March 1996 and mandatory fortification in January 1998. The data below shows t