Response to Mohammadi et al regarding: "Predicting adverse events, length of stay, and discharge disposition following shoulder arthroplasty: a comparison of the Elixhauser Comorbidity Measure and Charlson Comorbidity Index"
1 Department of Orthopaedics, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA.
2 Department of Orthopaedics, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH, USA. Electronic address: robertgillespie77@gmail.com.