Data collection guidelines for questionnaires to be used in case-control studies of multiple sclerosis.
Boiko
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Department of Neurology, Russian State Medical University, Moscow, Russian Federation.
D000828:Animal Population Groups; D000818:Animals; D016022:Case-Control Studies; D003625:Data Collection; D004032:Diet; D004777:Environment; D004781:Environmental Exposure; D017408:Guidelines as Topic; D006801:Humans; D008019:Life Style; D008499:Medical Records; D009103:Multiple Sclerosis; D009747:Nutritional Physiological Phenomena; D009790:Occupations; D012307:Risk Factors; D011795:Surveys and Questionnaires