Authors: R S Ballal; N C Nanda; R Gatewood; B D'Arcy; T E Samdarshi; W L Holman; J K Kirklin; A D Pacifico Journal: Circulation Date: 1991-11 Impact factor: 29.690
Authors: I Kronzon; L Demopoulos; S S Schrem; P Pasternack; D McCauley; R S Freedberg Journal: J Am Soc Echocardiogr Date: 1990 Mar-Apr Impact factor: 5.251
Authors: M A Taams; W J Gussenhoven; L A Schippers; J Roelandt; L A van Herwerden; E Bos; N de Jong; N Bom Journal: Eur Heart J Date: 1988-12 Impact factor: 29.983