Authors: H Granda; S Gispert; A Dorticós; M Martín; Y Cuadras; M Calvo; G Martínez; M A Zayas; J A Oliva; L Heredero Journal: Lancet Date: 1991-01-19 Impact factor: 79.321
Authors: M H Gaston; J I Verter; G Woods; C Pegelow; J Kelleher; G Presbury; H Zarkowsky; E Vichinsky; R Iyer; J S Lobel Journal: N Engl J Med Date: 1986-06-19 Impact factor: 91.245