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Subclass RB
| RB1-214 | Pathology | |
| RB1-17 | General works | |
| RB24-33 | Pathological anatomy and histology | |
| RB37-56.5 | Clinical pathology. Laboratory technique | |
| RB57 | Post-mortem examination. Autopsies | |
| RB127-150 | Manifestations of disease | |
| RB151-214 | Theories of disease. Etiology. Pathogenesis | |
