title: Invited commentary.
authors.affiliation: Department of Biosurgery-Surgical Technology and Surgical Epidemiology Unit, Imperial College London, St. Mary's Hospital, London, W2 1NY United Kingdom. t.athanasiou@imperial.ac.uk
authors.forename: Thanos
authors.initials: T
authors.lastname: Athanasiou
mesh_terms: D015982:Bias; D001026:Coronary Artery Bypass / Q000379:methods*; D003324:Coronary Artery Disease / Q000601:surgery*; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D009203:Myocardial Infarction / Q000601:surgery*; D011183:Postoperative Complications / Q000209:etiology* / Q000517:prevention & control; D012107:Research Design; D013530:Surgical Wound Infection / Q000209:etiology / Q000517:prevention & control; D020858:Tissue and Organ Harvesting / Q000379:methods*; D014680:Veins / Q000637:transplantation*