MacLeod S, Tkatch R, Kraemer S, Fellows A, McGinn M, Schaeffer J, Yeh CS. COVID-19 era social isolation among older adults. Geriatrics. 2021 May 18;6(2):52. doi: 10.3390/geriatrics6020052
McSweeney L, Breckons M, Fattakhova G, Oluboyede Y, Vale L, Ternent L, Balp M-M, Doward L, Brass CA, Beyer F, Sanyal A, Anstee QM. Health-related quality of life and patient-reported outcome measures in NASH-related cirrhosis. JHEP Rep. 2020 Mar 6;2(3). doi: 10.1016/j.jhepr.2020.100099
Williams VSL. The "unbiased" anchor: bridging the gap between DIF and item bias. Appl Meas Educ. 1997;10(3):253-67. doi: 10.1207/s15324818ame1003_4