Authors: M Naito; L S Dreifus; T J Mardelli; C C Chen; D David; E L Michelson; V Marcy; J Morganroth Journal: Am J Cardiol Date: 1980-10 Impact factor: 2.778
Authors: R A Nishimura; B J Gersh; R E Vlietstra; M J Osborn; D M Ilstrup; D R Holmes Journal: Pacing Clin Electrophysiol Date: 1982-11 Impact factor: 1.976