To learn more about ERT product and service offerings, visit ert.com/ecoa ert.com Copyright © 2015 by ERT. All rights reserved. CASE STUDY EVIDENCE: REDUCED STANDARD DEVIATION WITH ELECTRONIC PRO In 2004, clinical researchers at Merck Research Laboratories designed a study to compare and evaluate patient-reported outcome (PRO) data collected on a handheld electronic device vs data collected on paper. To this day, the Merck Insomnia Study

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