RT Journal Article SR Electronic T1 Length of Hospital Stay Is Predicted by Comorbidities JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP eS15 OP eS15 VO 76 IS 2 esuppl 1 A1 Catherine Gibb A1 Villis Marshall YR 2009 UL http://www.ccjm.org/content/76/2_esuppl_1/eS15.abstract AB