D L Boteler

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Referral bias is a significant problem affecting the generalizability of clinical studies conducted in a university setting. To examine referral bias in our university-based multiple sclerosis referral center, we analyzed the characteristics of referral center patients compared to the population-based group of multiple sclerosis patients from which the(More)
A population-based study of multiple sclerosis (MS) was conducted in 2 northern Colorado counties in 1982 to determine MS prevalence, to compare the rates with recent North American surveys and to compare the methods used in these studies. Provisional cases were identified from: the patient rolls of MS service organizations, chart reviews in 2 neurology(More)
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