Impact of universal vaccination against varicella in Italy.

Hum Vaccin Immunother · 2015 · PMC4514224 · PMID 25483517

Europe PMC DOI

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a decreasing trendno p-value reported

However, considering available data, a decreasing trend could be observed in the costs sustained by the Regional Health Service in the period of observation.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.