Authors: B Wilson; J G Thornton; J Hewison; R J Lilford; I Watt; D Braunholtz; M Robinson Journal: Int J Qual Health Care Date: 2002-06 Impact factor: 2.038
Authors: T A Brennan; L L Leape; N M Laird; L Hebert; A R Localio; A G Lawthers; J P Newhouse; P C Weiler; H H Hiatt Journal: N Engl J Med Date: 1991-02-07 Impact factor: 91.245