15:39:22
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の論文「 に感染した時点での体内 の量が、重症化や死亡率を左右する」
Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness
journals.plos.org/plosone/arti

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Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness