Designing an internationally accessible web-based questionnaire to discover risk factors for amyotrophic lateral sclerosis: A case-control study
|Jane Alana Parkin Kullman , Susan Hayes , Min-Xao Wang , Roger Pamphlett 
 The University of Sydney
|Journal of Medical Internet Research
|This study aims to design a Web-based questionnaire to identify environmental risk factors for ALS and enable international comparisons of these risk factors. Online questionnaires resulted in a much larger reception suggesting web-based questionnaires are a time- and resource-efficient method for performing large epidemiological studies of neurodegenerative diseases such as ALS.
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