Etanercept therapy in rheumatoid arthritis. A randomized, controlled trial. - Moreland,L.W.; Schiff,M.H.; Baumgartner,S.W.; Tindall,E.A.; Fleischmann,R.M.; Bulpitt,K.J.; Weaver,A.L.; Keystone,E.C.; Furst,D.E.; Mease,P.J.; Ruderman,E.M.; Horwitz,D.A.; et al. (Ann Intern Med, 1999)