以偏概全,太极端。看看这本书或者它的评论: [ame="http://www.amazon.com/Overdiagnosed-Making-People-Pursuit-Health/dp/0807021997"]Overdiagnosed: Making People Sick in the Pursuit of Health: H. Gilbert Welch, Lisa Schwartz, Steve Woloshin: 9780807021996: Amazon.com: Books[/ame]