Bell CF, Ajmera M, Meyers J. Retrospective analysis of the burden of illness of eosinophilic granulomatosis with polyangiitis (EGPA) versus asthma in commercially insured US patients. Cureus J Med Science. 2023 Jul 21;15(7):e42241. doi: 10.7759/cureus.42241
Hayes AF, Rockwood NJ. Regression-based statistical mediation and moderation analysis in clinical research: observations, recommendations, and implementation. Behav Res Ther. 2017 Nov;98:39-57. doi: 10.1016/j.brat.2016.11.001
Luciano JV, Barrada JR, Aguado J, Osma J, García-Campayo J. Bifactor analysis and construct validity of the HADS: a cross-sectional and longitudinal study in fibromyalgia patients. Psychological Assessment. 2014 Jun;26(2):395-406.