title: Manifest and Concealed Atrioventricular Nodal Double Firing.
authors.affiliation: Département de Rythmologie, Clinique Pasteur, Toulouse, France. Electronic address: thomaspambrun@aol.com.
authors.forename: Thomas
authors.initials: T
authors.lastname: Pambrun
authors.affiliation: Département de Rythmologie, Clinique Pasteur, Toulouse, France.
authors.forename: Serge
authors.initials: S
authors.lastname: Boveda
authors.affiliation: Département de Rythmologie, Clinique Pasteur, Toulouse, France.
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Albenque