@article{doi:10.2106/JBJS.L.00351,
author = {Cheng, Edward Y.},
title = {Joint Arthroplasty: The Climate Has Made It Ripe for Quality Assessment, but How Do We Compare Apples to Apples?Commentary on an article by Gary J. Hooper, FRACS, et al.: “The Relationship Between the American Society of Anesthesiologists Physical Rating and Outcome Following Total Hip and Knee Arthroplasty. An Analysis of the New Zealand Joint Registry”},
journal = {The Journal of Bone & Joint Surgery},
volume = {94},
number = {12},
pages = {e91 1-2},
year = {2012},
doi = {10.2106/JBJS.L.00351},
URL = { + http://dx.doi.org/10.2106/JBJS.L.00351},
eprint = {}
}