Davis KL, Meyers J, Zhao Z, McCollam PL, Murakami M. High-risk atherosclerotic cardiovascular disease in a real-world employed Japanese population: prevalence, cardiovascular event rates, and costs. J Atheroscler Thromb. 2015 Dec 1;22(12):1287-304. doi: 10.5551/jat.28852
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.