title: Colloid filtration as a preparative method for the radiochemical analysis of biological samples.
mesh_terms: D003102:Colloids; D004492:Edetic Acid / Q000494:pharmacology; D005243:Feces / Q000032:analysis; D005374:Filtration; D006863:Hydrogen-Ion Concentration; D008722:Methods; D011854:Radiochemistry; D011865:Radioisotope Dilution Technique; D015020:Yttrium Isotopes / Q000652:urine*
chemical_list: D003102:Colloids; D015020:Yttrium Isotopes; D004492:Edetic Acid