title: Neurology's debt to Becquerel.
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis*; D004396:Coloring Agents; D049673:History, 20th Century; D007275:Injections, Intravenous; D008722:Methods; D009462:Neurology / Q000266:history*
chemical_list: D004396:Coloring Agents