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Short communicationSex and racial/ethnic differences in the reason for 30-day readmission after COPD hospitalization
Keywords: سی دی; COPD; 30-day readmission; Sex differences; Racial/ethnic differences; COPD; chronic obstructive pulmonary disease; SID; State Inpatient Database; ICD-9-CM; International Classification of Diseases, Ninth Revision, Clinical Modification;