translation.en: And what the DNA sequencing technologies are allowing people to do now is do detailed studies of, say, 100 patients who have Crohn's disease and 100 people who don't have Crohn's disease.
translation.zh: 因为用DNA测序技术，人们可以做详细的研究 就像比较100个克罗恩病患者 和100个没有克罗恩病的人