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马来西亚医学研究所的口腔学专家完成了一项针对全面施行饮水加氟的赛蓝葛州的11～12岁学龄儿童氟斑牙患病情况的评价研究。马来西亚政府自1972年以来实施饮水加氟计划,最优化的饮水氟浓度建议值为0.7m g/L。目前,马来西亚半岛饮水加氟的覆盖人口达73.34%。该研究采用了横断面?
The Institute of Stomatology at the Malaysian Institute of Medicine has completed an evaluation of the prevalence of dental fluorosis in school-age children 11-12 years of age in Saigegezhou, a state with drinking water and fluoride. The Malaysian government has implemented a drinking water fluorination program since 1972, with a suggested drinking water fluoride concentration of 0.7 m g / L. At present, the population of drinking water and fluoride in Peninsular Malaysia covers 73.34% of the population. The study uses a cross-section?