Commentary: Can 'many weak' instruments ever be 'strong'?

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Commentary: Can 'many weak' instruments ever be 'strong'?

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ژورنال

عنوان ژورنال: International Journal of Epidemiology

سال: 2011

ISSN: 0300-5771,1464-3685

DOI: 10.1093/ije/dyr017