title: [Sternal retractor model in pacemaker implantation by subxyphoid approach].
mesh_terms: D006327:Heart Block / Q000601:surgery*; D006801:Humans; D010138:Pacemaker, Artificial / Q000379:methods*; D013249:Sternum / Q000601:surgery; D013525:Surgical Instruments
vernacular_title: Retrator de esteno para implante de marca-passo por via subxifoídea