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- Dewey Decimal Classification (DDC) (3)
- 600 Technology (Applied sciences) (3)
- 616 Diseases (3)
- 616.6 Diseases of urogenital system (3)
- 616.62 Diseases of bladder and urethra (3)
- 616.6 Diseases of urogenital system (3)
- 616 Diseases (3)
- 600 Technology (Applied sciences) (3)
Number of items at this level: 0.