| Label | Vocabulary | Concept | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Surgery | LC Subject Headings (LCSH) |
General Subdivision | sh99005416 | |
| Diseases--Surgery | |||||
| 2. | Mortality | LC Subject Headings (LCSH) |
General Subdivision | sh99005559 | |
| Patients--Mortality | |||||
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