title: [Introduction: from the viewpoint of cardiac surgery].
authors.affiliation: National Cardiovascular Center.
authors.forename: Y
authors.initials: Y
authors.lastname: Kawashima
mesh_terms: D001026:Coronary Artery Bypass / Q000706:statistics & numerical data; D003327:Coronary Disease / Q000601:surgery*; D006801:Humans; D013903:Thoracic Surgery / Q000639:trends; D013997:Time Factors