为什么意外跌倒的死亡率翻了三倍？

Source: Hacker News

文章链接: https://usafacts.org/articles/why-have-death-rates-from-accidental-falls-tripled/
评论链接: https://news.ycombinator.com/item?id=46600729
积分: 10
评论数: 6