Sell J, Riley TD, Miller EL. Integrating quality improvement and community engagement education: curricular evaluation of resident population health training. Fam Med. 2022 Sep;54(8):634-9. doi: 10.22454/FamMed.2022.637933
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.