title: Kinetic analysis of isotope exchange in a system of concentric cylinders.
mesh_terms: D000818:Animals; D001692:Biological Transport; D002463:Cell Membrane Permeability; D003201:Computers; D004058:Diffusion; D007413:Intestinal Mucosa / Q000378:metabolism; D007684:Kidney Tubules / Q000378:metabolism; D007700:Kinetics; D008297:Male; D008954:Models, Biological; D011868:Radioisotopes; D051381:Rats; D012867:Skin / Q000378:metabolism; D012964:Sodium / Q000378:metabolism; D012975:Sodium Isotopes; D013737:Testis / Q000166:cytology* / Q000378:metabolism; D013997:Time Factors; D001743:Urinary Bladder / Q000378:metabolism
chemical_list: D011868:Radioisotopes; D012975:Sodium Isotopes; D012964:Sodium