title: Intravascular contrast media--the past, the present and the future. Mackenzie Davidson Memorial Lecture, April 1981.
mesh_terms: D000818:Animals; D003287:Contrast Media / Q000009:adverse effects / Q000266:history*; D005544:Forecasting; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007469:Iodopyridones / Q000266:history; D009994:Osmolar Concentration; D011859:Radiography / Q000639:trends*; D013548:Sweden; D013911:Thorium Dioxide / Q000266:history; D014481:United States; D014567:Urography / Q000266:history
chemical_list: D003287:Contrast Media; D007469:Iodopyridones; D013911:Thorium Dioxide