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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

1 passage

abstractpubmed· abstract· item 30860552

This long-term follow-up of a randomized trial reporting no apparent effect of high-dose vs standard-dose prenatal vitamin D supplementation on wheezing in children at the age of 3 years extends the findings an additional 3 years and describes asthma risk at the age of 6 years.