Authors: M Moser; M D Blaufox; E Freis; R W Gifford; W Kirkendall; H Langford; A Shapiro; S Sheps Journal: JAMA Date: 1991 Jan 23-30 Impact factor: 56.272
Authors: N O Borhani; M Mercuri; P A Borhani; V M Buckalew; M Canossa-Terris; A A Carr; T Kappagoda; M V Rocco; H W Schnaper; J R Sowers; M G Bond Journal: JAMA Date: 1996-09-11 Impact factor: 56.272
Authors: L Hansson; L H Lindholm; T Ekbom; B Dahlöf; J Lanke; B Scherstén; P O Wester; T Hedner; U de Faire Journal: Lancet Date: 1999-11-20 Impact factor: 79.321