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Q28389454-82BD9CB0-B147-42C5-A271-9949516A3F11
Q28389454-82BD9CB0-B147-42C5-A271-9949516A3F11
BestRank
Statement
http://www.wikidata.org/entity/statement/Q28389454-82BD9CB0-B147-42C5-A271-9949516A3F11
Impact of preconception enrollment on birth enrollment and timing of exposure assessment in the initial vanguard cohort of the U.S. National Children's Study
P2860
Q28389454-82BD9CB0-B147-42C5-A271-9949516A3F11
BestRank
Statement
http://www.wikidata.org/entity/statement/Q28389454-82BD9CB0-B147-42C5-A271-9949516A3F11
rank
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Statement
wasDerivedFrom
5994a350a9df851e43fb1aed534abb9539cf994b
P2860
Statistical and practical issues in the design of a national probability sample of births for the Vanguard Study of the National Children's Study.