title: Marking fleas with 59Fe: uptake and retention of a tag acquired from the natural host.
mesh_terms: D000818:Animals; D001769:Blood; D004463:Ecology; D005247:Feeding Behavior; D005260:Female; D007303:Insect Vectors / Q000378:metabolism*; D007504:Iron Radioisotopes; D007553:Isotope Labeling; D008297:Male; D051381:Rats; D005423:Siphonaptera / Q000378:metabolism*
chemical_list: D007504:Iron Radioisotopes