Byrom B, Gwaltney C, Slagle A, Gnanasakthy A, Muehlhausen W. Measurement equivalence of patient-reported outcome measures migrated to electronic formats: a review of evidence and recommendations for clinical trials and bring your own device. Expert commentary. Ther Innov Regul Sci. 2018 Aug 29. doi: 10.1177/2168479018793369
Odom D, McLeod L, Sherif B, Nelson L, McSorley D. Longitudinal modeling approaches to assess the association between changes in 2 clinical outcome assessments. Ther Innov Regul Sci. 2018 May;52(3):306-12. doi: 10.1177/2168479017731584