Re: Hägg O, Fritzell P. Letter. Spine 2003; 29: 1160-1.
Brox
Jens Ivar
JI
Reikerås
Olav
O
Sørensen
Roger
R
Riise
Rolf
R
Nygård
Øystein
Ø
Ingebrigtsen
Tor
T
Keller
Anne
A
Indahl
Aage
A
Holm
Inger
I
Friis
Astrid
A
Koller
Anne Kathrine
AK
Eriksen
Hege
H
D002140:California; D016001:Confidence Intervals; D003362:Cost-Benefit Analysis; D017721:Hospital Costs; D006801:Humans; D009664:Norway; D017063:Outcome Assessment, Health Care / Q000706:statistics & numerical data; D018401:Sample Size; D012680:Sensitivity and Specificity; D013123:Spinal Fusion / Q000191:economics / Q000706:statistics & numerical data*; D013548:Sweden