Are psychosocial factors determinant in the pain and social participation of patients with early knee osteoarthritis? A cross-sectional study - Alabajos-Cea, A; Herrero-Manley, L; Suso-Martí, L; Alonso-Pérez-Barquero, J; Viosca-Herrero, E (Int J Environ Res Public Health, 2021)