Authors: M Fulton; W Lutz; K W Donald; B J Kirby; B Duncan; S L Morrison; F Kerr; D G Julian; M F Oliver Journal: Lancet Date: 1972-04-22 Impact factor: 79.321
Authors: A Maseri; A L'Abbate; G Baroldi; S Chierchia; M Marzilli; A M Ballestra; S Severi; O Parodi; A Biagini; A Distante; A Pesola Journal: N Engl J Med Date: 1978-12-07 Impact factor: 91.245