It’s not just childhood leukemia anymore.

An average exposure of only 2 mG during pregnancy leads to a significant increase in the risk of the child developing asthma. That’s the finding of a new study from Kaiser Permanente published today.

Recently, everybody has been clamoring for prospective epidemiological studies. Now De-Kun Li, the project leader, has completed one. He tracked the kids for 13 years.

What happens next? Will anyone pay attention?

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