[ON THE PREVENTION OF RICKETS IN CHILDREN IN THE TRANSPOLAR REGION].
D002648:Child; D004872:Ergocalciferols; D006801:Humans; D007223:Infant; D007227:Infant Nutritional Physiological Phenomena; D012279:Rickets; D012426:Russia; D012800:Siberia; D014466:Ultraviolet Rays
D004872:Ergocalciferols
CHILD; ERGOCALCIFEROL; INFANT; INFANT NUTRITION; RICKETS; RUSSIAN FEDERATION (ASIA); ULTRAVIOLET RAYS