title: [Medical productivity: a formal or a material sophism?].
authors.affiliation: Editor da Revista Portuguesa de Cirurgia Cardio-torácica e Vascular, Portugal.
authors.forename: José Fernando
authors.initials: JF
authors.lastname: Teixeira
mesh_terms: D003695:Delivery of Health Care / Q000458:organization & administration*; D017598:Efficiency, Organizational; D006801:Humans