Rosol, Z [Control of implanted pacemaker with steady frequency in patients with atrioventricular block]. [electronic resource] - Casopis lekaru ceskych Oct 1972 - 1113-4 p. digital Publication Type: Journal Article ISSN: 0008-7335 Subjects--Topical Terms: ElectrocardiographyElectrodes, ImplantedHeart Block--therapyHeart Conduction SystemHumansPacemaker, Artificial