title: [Development of an enzymatic colorimetric method for the determination of oxypurine (hypoxanthine and xanthine)].
mesh_terms: D000293:Adolescent; D000328:Adult; D003124:Colorimetry / Q000379:methods*; D006801:Humans; D007042:Hypoxanthines / Q000032:analysis*; D008297:Male; D014970:Xanthines / Q000032:analysis*
chemical_list: D007042:Hypoxanthines; D014970:Xanthines