[Many Danes get too little of vitamin D].
Favrbo
Karl
K
D003718:Denmark; D004872:Ergocalciferols / Q000008:administration & dosage; D006801:Humans; D013472:Sunlight; D014466:Ultraviolet Rays; D014807:Vitamin D / Q000008:administration & dosage; D014808:Vitamin D Deficiency / Q000209:etiology / Q000517:prevention & control
D004872:Ergocalciferols; D014807:Vitamin D