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[Correspondence] Vitamin A distribution in danger: should we worry?

In an editorial (May 12, p1866),1 The Lancet supported UNICEF’s call for action to prevent a drop in high-dose vitamin A supplementation coverage as the important delivery vehicles, the national oral polio vaccine (OPV) campaigns, are coming to an end. This is reasonable if vitamin A supplementation is an important intervention—but is it?

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