Authors: P Pletka; J R Kenyon; M Snell; S L Cohen; K Owen; J F Mowbray; B Hulme; A E Thompson; K A Porter; D A Leigh; W S Peart Journal: Lancet Date: 1969-01-04 Impact factor: 79.321
Authors: W D Kelly; R C Lillehei; J B Aust; R L Varco; A S Leonard; W O Griffin; C Markland; R C Herdman; R L Vernier; A F Michael; J Levitt Journal: Surgery Date: 1967-10 Impact factor: 3.982