Estimated costs for electronic and paper-based surveys with different cohort sizes and numbers of questions based on the surveys E<sub>1</sub> (centralized e-mails), H<sub>1</sub> (homepage link), and P<sub>1</sub> (paper-based questionnaires).

Abstract

<p>Estimated costs for electronic and paper-based surveys with different cohort sizes and numbers of questions based on the surveys E<sub>1</sub> (centralized e-mails), H<sub>1</sub> (homepage link), and P<sub>1</sub> (paper-based questionnaires).</p

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