Authors: R M Anderson; C A Donnelly; N M Ferguson; M E Woolhouse; C J Watt; H J Udy; S MaWhinney; S P Dunstan; T R Southwood; J W Wilesmith; J B Ryan; L J Hoinville; J E Hillerton; A R Austin; G A Wells Journal: Nature Date: 1996-08-29 Impact factor: 49.962