title: Escape-capture bigeminy.
authors.affiliation: Cardiology Division, University of Massachusetts Medical School, Worcester, MA 01655, USA.
authors.forename: David H
authors.initials: DH
authors.lastname: Spodick
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000453:epidemiology; D015897:Comorbidity; D005260:Female; D006801:Humans; D009436:Neural Tube Defects / Q000453:epidemiology