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Urea - Wikipedia
What is Carbamide? (with pictures) - AllTheScience
Carbamide Peroxide vs Hydrogen Peroxide: Which is Best? - Dentaly
Urea | Definition, Formula, Production, Uses, & Facts | Britannica
Carbamide - Side Effects, Uses, Dosage, Overdose, Pregnancy
Carbamide Definition & Meaning - Merriam-Webster
Urea - American Chemical Society
Urea - NIST Chemistry WebBook
Urea | NH2CONH2 | CID 1176 - PubChem
Carbamide Forte