title: Electrocardiographic abnormalities preceding ventricular premature beats.
authors: Faculdade de Medicina de Botucatu, UNESP, Botucatu, SP, Brazil. etrezza@uol.com.br
authors: Eder
authors: E
authors: Trezza
mesh_terms: D004562:Electrocardiography; D004594:Electrophysiology; D005080:Exercise Test; D006801:Humans; D012189:Retrospective Studies; D018879:Ventricular Premature Complexes / Q000503:physiopathology*