Why did vaccines for the youngest children take so long? Maybe U.S. regulators were looking at the wrong metrics.
By BY APOORVA MANDAVILLI from NYT Health https://ift.tt/GWaKNUX
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Why did vaccines for the youngest children take so long? Maybe U.S. regulators were looking at the wrong metrics.
![Why did vaccines for the youngest children take so long? Maybe U.S. regulators were looking at the wrong metrics.]()
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