title: Proceedings: Potentiation of urea on the toxicity of formaldehyde.
mesh_terms: D000818:Animals; D004285:Dogs; D004357:Drug Synergism; D005557:Formaldehyde / Q000633:toxicity*; D051379:Mice; D014508:Urea / Q000494:pharmacology*
chemical_list: D005557:Formaldehyde; D014508:Urea