(Q36481490)
Statements
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The use of surrogate respondents to obtain questionnaire data in case-control studies of neurologic diseases (English)
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Rocca WA
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Fratiglioni L
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Bracco L
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Pedone D
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Groppi C
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Schoenberg BS
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1 January 1986
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39
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11
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907-912
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Identifiers
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