@article{dbcb181138254ad2870353f16ea4d95d,
title = "ASA grade and Charlson Comorbidity Index of spinal surgery patients: correlation with complications and societal costs",
author = "Whitmore, \{Robert G.\} and Stephen, \{James H.\} and Coleen Vernick and Campbell, \{Peter G.\} and Sanjay Yadla and Ghobrial, \{George M.\} and Maltenfort, \{Mitchell G.\} and Ratliff, \{John K.\}",
year = "2014",
month = jan,
day = "1",
doi = "10.1016/J.SPINEE.2013.03.011",
language = "American English",
volume = "14",
journal = "The Spine Journal",
number = "1",
}