Association of hospital and surgeon volume of total hip replacement with functional status and satisfaction three years following surgery. - Katz,J.N.; Phillips,C.B.; Baron,J.A.; Fossel,A.H.; Mahomed,N.N.; Barrett,J.; Lingard,E.A.; Harris,W.H.; Poss,R.; Lew,R.A.; Guadagnoli,E.; Wright,E.A.; et al. (Arthritis Rheum, 2003)