The production of  157 Dy for medical use.
D001842:Bone and Bones / Q000000981:diagnostic imaging; D002852:Chromatography, Ion Exchange; D004419:Dysprosium / Q000032:analysis; D006207:Half-Life; D007553:Isotope Labeling; D008722:Methods; D011859:Radiography; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013057:Spectrum Analysis; D013725:Terbium / Q000032:analysis
D011868:Radioisotopes; D013725:Terbium; D004419:Dysprosium