Authors: B Modell; M Petrou; M Layton; L Varnavides; C Slater; R H Ward; C Rodeck; K Nicolaides; S Gibbons; A Fitches; J Old Journal: BMJ Date: 1997-09-27
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