Concentrated sources of alpha particles within thyroid glands.
D000512:Alpha Particles; D000818:Animals; D001345:Autoradiography; D002417:Cattle; D006801:Humans; D007456:Iodine Isotopes; D011883:Radium; D013910:Thorium; D013961:Thyroid Gland
D007456:Iodine Isotopes; D013910:Thorium; D011883:Radium