Symposium: the national hip registry: a new resource for measuring and improving the quality of health care.
Fitzgerald
R H
RH
Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Philadelphia, USA.
Callaghan
J J
JJ
Colwell
C W
CW
Skinner
H B
HB
D006622:Hip Prosthesis / Q000592:standards / Q000706:statistics & numerical data; D006801:Humans; D011787:Quality of Health Care; D012042:Registries; D014481:United States