Defining vitamin D deficiency in infants and toddlers.
James A
JA
Taylor
D002669:Child Welfare; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007229:Infant Welfare; D015995:Prevalence; D012307:Risk Factors; D014481:United States / Q000453:epidemiology; D014807:Vitamin D / Q000097:blood*; D014808:Vitamin D Deficiency / Q000097:blood / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology
D014807:Vitamin D