1. Spontaneously increased B cell growth factor and B cell differentiation factor activities in the synovial fluid of patients with rheumatoid arthritis. Issue 5 (May 1989) Authors: Mulero, J; Alvarez-Mon, M; de Villa, L F; Rodríguez, M; Noguera, E; Martín-Santos, J M; Gutiérrez, C Journal: Annals of the rheumatic diseases Issue: Volume 48:Issue 5(1989) Page Start: 400 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗