This review found nothing, so they found ‘no clinical evidence on vitamin D in COVID-19.’ No evidence for and no evidence against. ‘We found no trials of vitam

This review found nothing, so they found ‘no clinical evidence on vitamin D in COVID-19.’ No evidence for and no evidence against. ‘We found no trials of vitamin D in COVID-19 that have reported results.’ ‘As our searches returned no relevant results, [...]’