Authors: J E Martinez; R H Mohiaddin; P J Kilner; K Khaw; S Rees; J Somerville; D B Longmore Journal: J Am Coll Cardiol Date: 1992-08 Impact factor: 24.094
Authors: I A Simpson; L M Valdes-Cruz; D P Berthoty; J B Powell; J R Hesselink; K J Chung; D J Sahn Journal: Am J Cardiol Date: 1993-06-15 Impact factor: 2.778