Authors: J G Wagner; M Christensen; E Sakmar; D Blair; J D Yates; P W Willis; A J Sedman; R G Stoll Journal: JAMA Date: 1973-04-09 Impact factor: 56.272
Authors: J E Doherty; W J Flanigan; M L Murphy; R T Bulloch; G L Dalrymple; O W Beard; W H Perkins Journal: Circulation Date: 1970-11 Impact factor: 29.690