title: Effect of extract from Rhei rhizoma on urea-nitrogen concentration in rat serum.
mesh_terms: D000818:Animals; D001806:Blood Urea Nitrogen; D008297:Male; D010936:Plant Extracts / Q000494:pharmacology*; D010946:Plants, Medicinal; D051381:Rats; D012250:Rheum
chemical_list: D010936:Plant Extracts