(Q39263873)
Statements
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National Cooperative Crohn's Disease Study: study design and conduct of the study (English)
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Winship DH
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Summers RW
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Singleton JW
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Best WR
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Becktel JM
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Lenk LF
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Kern F Jr
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1 October 1979
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77
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4 Pt 2
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829-842
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Identifiers
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