Schroeder, H.T., Cavalheiro, J.C.A., Martins, E.T.J. and Bock, P.M. 2023. Cross-sectional evaluation of socioeconomic and clinical factors and the impact of fibromyalgia on the quality of life of patients during the COVID-19 pandemic. São Paulo Medical Journal. 141, 2 (Mar. 2023), 138–145.