How do questionnaire definitions of atopy status affect sample size calculations for asthma cohort studies in a population of Canadian children?

How do questionnaire definitions of atopy status affect sample size calculations for asthma cohort studies in a population of Canadian children?

Bibliographic Details
Main Authors:	Kwon Sarah, Simons Elinor, To Teresa, Dell Sharon D
Format:	Article
Language:	English
Published:	BMC 2011-11-01
Series:	Allergy, Asthma & Clinical Immunology

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