title: When a trick becomes a technique.
authors.forename: I
authors.initials: I
authors.lastname: Wiener
mesh_terms: D006328:Cardiac Catheterization / Q000295:instrumentation / Q000379:methods*; D003331:Coronary Vessels; D004566:Electrodes; D022062:Electrophysiologic Techniques, Cardiac; D004867:Equipment Design; D005263:Femoral Artery; D006801:Humans