The first radioindicator study in the life sciences with a man-made radionuclide: "Radioactive indicators in the study of phosphorus metabolism in rats, by O. Chievitz and G. Hevesy, reprinted from Nature 136: 754-755, Nov. 9, 1935.".
D000818:Animals; D003718:Denmark; D049673:History, 20th Century; D009683:Nuclear Medicine / Q000266:history*; D010758:Phosphorus / Q000378:metabolism; D010761:Phosphorus Radioisotopes; D011849:Radioactive Tracers; D011868:Radioisotopes; D051381:Rats
D010761:Phosphorus Radioisotopes; D011849:Radioactive Tracers; D011868:Radioisotopes; D010758:Phosphorus