Raventos B, Abellan A, Pistillo A, Reyes C, Burn E, Duarte-Salles T. Impact of the COVID-19 pandemic on eating disorders diagnoses among adolescents and young adults in Catalonia: a population-based cohort study. Int J Eat Disord. 2023 Jan;56(1):225-34. doi: 10.1002/eat.23848
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.
Price MA, Hill CD, Williams VSL, Morlock RJ, Leeuwenkamp O, Patterson TL. Measures of functional status and quality-of-life in schizophrenia. Curr Psychiatry Rev. 2008 Feb 1;4(1):28-38.