skos:altLabel | - Urates
- blood urea nitrogen
- urea
- Urals
- CH<sub>4</sub>N<sub>2</sub>O
- CO(NH<sub>2</sub>)<sub>2</sub>
- Carbamide
- Synthesis of urea
- Urea#Medical use
- Urea#Medical_use
- Urea#Physiology
- Urea#Synthesis
- carbamide
- granular urea
- urea (or ''carbamide'')
- urea application
- urea derivative
- urea derivatives
- urea fertilizer
- urea spraying systems
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