Authors: R P Ford; B J Taylor; E A Mitchell; S A Enright; A W Stewart; D M Becroft; R Scragg; I B Hassall; D M Barry; E M Allen Journal: Int J Epidemiol Date: 1993-10 Impact factor: 7.196
Authors: M P l'Hoir; A C Engelberts; G T van Well; P Westers; G J Mellenbergh; W H Wolters; J Huber Journal: Arch Dis Child Date: 1998-11 Impact factor: 3.791