Letter: Venospasm during cardiac catheterization.
D000284:Administration, Oral; D006328:Cardiac Catheterization / Q000009:adverse effects*; D006801:Humans; D005996:Nitroglycerin / Q000008:administration & dosage / Q000627:therapeutic use; D013035:Spasm / Q000188:drug therapy / Q000209:etiology*; D014689:Venous Insufficiency / Q000188:drug therapy / Q000209:etiology*
D005996:Nitroglycerin