. . . . . . . "[Vitamin D activity requires an adequate vitamin D status as indicated by the serum level of 25-hydroxyvitamin D and appropriate expression of genes coding for vitamin D receptor and 25-hydroxyvitamin D 1?-hydroxylase, the enzyme which converts 25-hydroxyvitamin D to 1,25-dihydroxyvitamin D. Vitamin D deficiency contributes to the aetiology of osteomalacia and osteoporosis.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:17:11+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .