Expression of interferon-gamma, IL-10, IL-12 and transforming growth factor-beta mRNA in synovial fluid cells from patients in the early and late phases of rheumatoid arthritis (RA) - Bucht, A; Larsson, P; Weisbrot, L; Thorne, C; Pisa, P; Smedegard, G; Keystone, EC; Gronberg, A (Clin Exp Immunol, 1996)