"It is not a metabolite usually thought of as toxic," said Swan, director of the Center for Reproductive Epidemiology at the University of Rochester School of Medicine and Dentistry.

“这不是人们一般概念中的有毒代谢物，”斯维恩说。她现在是罗切斯特医科大学生殖流行病学中心主任。

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"You're comparing two different groups of patients here," says Dr. William Schoolcraft, director of the Colorado Center for Reproductive Medicine.

“科罗拉多生育医学研究中心”负责人威廉姆·斯库克拉夫特博士说：“你们是把两类不同的病人进行对比。”

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This is a University Training Center for Reproductive Medicine and Professor Tan Li adolescent today released a report of the investigation of the figures.

这是北京大学生殖医学与培训中心教授李潭今天公布的有关青春期性调查报告中披露的数字。

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