Letters to the Editor

A single infusion of infliximab increases the serum endostatin level in patients with rheumatoid arthritis

E.J. Kucharz, J. Gozdzik, M. Kopec, A. Kotulska, M. Lewicki, R. Pieczyrak, M. Widuchowska, H. Zakliczynska, M. Szarzynska-Ruda, E. Zycinska-Debska