title: [Welcome by guest editor].
authors.forename: Arpád
authors.initials: A
authors.lastname: Péterffy
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000706:statistics & numerical data / Q000639:trends; D006348:Cardiac Surgical Procedures / Q000706:statistics & numerical data* / Q000639:trends*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D006814:Hungary / Q000453:epidemiology; D018156:Journalism, Medical / Q000266:history / Q000592:standards; D007802:Language; D016239:MEDLINE