DiBenedetti D, Baranowski E, Zelt S, Reynolds M, Sherrill B. Assessing United States patient and dermatologist experiences with severe chronic hand eczema. J Clin Aesthet Dermatol. 2015 Nov;8(11):19-27.
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.
Knox D, Gibson L, Zusman ME, Gallmeier C. Why college students end relationships. Coll Stud J. 1997 Jan 1;31(4):449-52.