title: [Vitamin-D deficiency].
authors.forename: I
authors.initials: I
authors.lastname: Grootjans-Geerts
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009426:Netherlands / Q000453:epidemiology; D011247:Pregnancy; D015995:Prevalence; D014808:Vitamin D Deficiency / Q000175:diagnosis / Q000453:epidemiology*