translation.en: Then if you poked a little more, you looked a little more at what was going on, you'd find that actually that was a pretty good year, because in some years the only people tested are IV drug users.
translation.zh: 如果你再深入一点 你就会发现更多 你会发现当年情况很好 因为在那几年被测试者只有静脉吸毒者