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妇女胎次对氟骨症的影响张希宁，许耀玲，路春生根据１９８８年山东地方性氟中毒的回顾性调查材附表病区妇女胎次与氟骨症患病率（％）仍按原来标准与现标准对照包括极轻度。括号内为例数料，选择氟病区中生活条件相似的１５０名氟骨症妇女，调查了胎次与氟骨症病情关系，...
According to the 1988 retrospective survey of endemic fluorosis in Shandong, the prevalence of fetal parity and skeletal fluorosis (%) is still in accordance with the original standard and The standard control is included very mild. In brackets, for example, we selected 150 skeletal fluorosis women with similar living conditions in the fluorosis area, and investigated the relationship between the parity and skeletal fluorosis.