[Problems of rickets prevention in the DDR].
D005859:Germany, East; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D012279:Rickets / Q000517:prevention & control*; D014807:Vitamin D / Q000008:administration & dosage / Q000009:adverse effects
D014807:Vitamin D
Probleme der Rachitisprophylaxe in der DDR.