title: A new method for the concentration of micro protein samples.
mesh_terms: D000818:Animals; D001798:Blood Proteins / Q000302:isolation & purification*; D002476:Cellophane; D002482:Cellulose / Q000031:analogs & derivatives; D008722:Methods; D008832:Microchemistry; D011817:Rabbits; D014462:Ultrafiltration
chemical_list: D001798:Blood Proteins; D002482:Cellulose; D002476:Cellophane