title: Morphological analysis of sinus and retrograde atrial waves detected through a permanent pacemaker atrial lead.
authors.affiliation: Department of Cardiology, Helsinki University Central Hospital, Haartmaninkatu 4, P.O. Box 340, Helsinki FI-00290, Finland. sami.pakarinen@hus.fi
authors.forename: Sami
authors.initials: S
authors.lastname: Pakarinen
authors.forename: Anne-Mari
authors.initials: AM
authors.lastname: Vitikainen
authors.forename: Giorgio
authors.initials: G
authors.lastname: Corbucci
authors.forename: Lauri
authors.initials: L
authors.lastname: Toivonen