
The "iSGS 1000" created thru the North American Airway Collaborative's PCORI-funded study has exponentially accelerated the search for a cure. Large prospective cohorts (groups) of patients with a specific disease are critical to assess genetic and environmental factors reliably. This large cohort also allows longitudinal study of disease (ie following patients for a long time). This time is essential to really know how well different treatments work because outcomes can span several years.
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