A positron cow.
D000818:Animals; D002417:Cattle; D004583:Electrons; D005260:Female; D005708:Gallium; D005710:Gallium Radioisotopes; D005857:Germanium; D011851:Radioactivity; D011868:Radioisotopes
D005710:Gallium Radioisotopes; D011868:Radioisotopes; D005857:Germanium; D005708:Gallium
GALLIUM/radioactive; GERMANIUM/radioactive