主要转归指标：主要分析调查了因股骨转子下骨折或股骨干骨折住院与双膦酸盐暴露时间之间的关联性。
MAIN OUTCOME MEASURES: the primary analysis examined the association between hospitalization for a subtrochanteric or femoral shaft fracture and duration of bisphosphonate exposure.
采用EXAMS模式，研究了运河常州段中存在的双-（2-氯乙基）醚、硝基苯、喹啉以及挥发酚的暴露、归趋和持久性。
The exposure, fate and persistence of bis-(2 -chloroethyl )ether, nitrobenzene, quinoline and volatile phenol existing in the Grand Canal at Changzhou have been studied using EXAMS model.
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