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. Or 100 people who took antibiotics when they were little, and 100 people who did not take antibiotics.
Современные технологии секвенирования ДНК позволяют тщательно исследовать, скажем, 100 пациентов с болезнью Крона и 100 человек без болезни Крона, или 100 человек, которые в детстве принимали антибиотики, и 100 человек, которые их не принимали.