... 美国每年要进行1000万例智齿拔除，其中许多人第二天都感到不舒服。 近来，越来越多的美国牙医对拔除智齿是不是必要表示怀疑。美国公共卫生协会(APHA)与全国健康研究所(NIH)都不建议在智齿没发生病变的情况下，做预防性拔除。
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此项研究结果将在丹佛举行的美国公共卫生协会会议上公布。另外，结果显示，目前已有五分之一的青少年属于“健康风险人群”，其中不乏少女。
The findings, which were presented at the American Public Health Association's conference in Denver, found that up to one in five teenagers belonged to this group, many of whom were female.
此项研究结果将在丹佛举行的美国公共卫生协会会议上公布。 另外，结果显示，目前已有五分之一的青少年属于“健康风险人群”，其中不乏少女。
The findings, which were presented at the American Public Health Association's conference in Denver, found that up to one in five teenagers belonged to this group, many of whom were female.
早在2003年，世界上历史最悠久、规模最大的公共卫生组织美国公共卫生协会就曾呼吁暂停集约化动物农场这种生产模式，因为他们预见类似猪流感这类的大规模流行病可能会发生。
Back in 2003, the American Public Health Association - the oldest and largest in world - called for a moratorium of factory farming because they saw something like this would happen.
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