Summarized Results of Subgroup Analysis for Underlying Diseases: Cumulative Operation Volumes within the Study Period.
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X: no association; >: higher risk; SSI: surgical site infection; COPD: chronic obstructive pulmonary diseaseLV: Low Volume; MV: Medium Volume; HV: High VolumeSummarized Results of Subgroup Analysis for Underlying Diseases: Cumulative Operation Volumes within the Study Period.
创建时间：
2015-12-03
