1.The endemic fluorosis is a kind of endemia widely distributed in Ningxia, and this is strongly related to the special natural geochemical environment of Ningxia.
摘要地氟病是宁夏广泛分布一种地方病,与宁夏原生地球化学环境有密切关系。
2.The incidence of fluorosis is correlative with the content of Fluoride, which comes from mother-rock and is related to petrogenic element in soil.