Weinblatt ME, Kremer JM, Bankhurst AD, Bulpitt KJ, Fleischmann RM, Fox RI, Jackson CG, Lange M, Burge DJ.
A trial of etanercept, a recombinant tumor necrosis factor receptor:Fc fusion protein, in patients with rheumatoid arthritis receiving methotrexate.
N Engl J Med. 1999 Jan 28;340(4):253-9
Kremer JM, Weinblatt ME, Bankhurst AD, Bulpitt KJ, Fleischmann RM, Jackson CG, Atkins KM, Feng A, Burge DJ
Etanercept added to background methotrexate therapy in patients with rheumatoid arthritis: continued observations
Arthritis Rheum. 2003 Jun;48(6):1493-9