| Label | Vocabulary | Concept | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Surgery--Risk factors | LC Subject Headings (LCSH) |
General Subdivision | sh2001008969 | |
| 2. | Surgery--Complications | LC Subject Headings (LCSH) |
General Subdivision | sh2001009080 | |
| Surgery--Complications and sequelae ; Surgery--Complications and sequelae | |||||
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