title: Letter: Radioisotopes and the "10-day Rule".
mesh_terms: D005260:Female; D005333:Fetus / Q000528:radiation effects*; D005708:Gallium; D005865:Gestational Age; D006801:Humans; D007457:Iodine Radioisotopes; D008431:Maternal-Fetal Exchange; D008598:Menstruation; D011247:Pregnancy; D011830:Radiation Effects; D011868:Radioisotopes; D013997:Time Factors
chemical_list: D007457:Iodine Radioisotopes; D011868:Radioisotopes; D005708:Gallium