title: [Last call...].
authors: Serviço de Cirurgia Geral. Centro Hospitalar de S. JoÉo. Porto. Portugal.
authors: José
authors: J
authors: Costa-Maia
mesh_terms: D001359:Aviation / Q000706:statistics & numerical data; D006801:Humans; D019300:Medical Errors / Q000517:prevention & control*; D015233:Models, Statistical