Well, go find the numbers!
But would you imagine any correlation between pollution and birth defects be simple, especially on a national level? For one, don't you think any increased pollution would be offset by improvements in things like health care, education of mothers and housing over the same period?
But would you imagine any correlation between pollution and birth defects be simple, especially on a national level? For one, don't you think any increased pollution would be offset by improvements in things like health care, education of mothers and housing over the same period?
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