Authors: S J Winawer; R H Fletcher; L Miller; F Godlee; M H Stolar; C D Mulrow; S H Woolf; S N Glick; T G Ganiats; J H Bond; L Rosen; J G Zapka; S J Olsen; F M Giardiello; J E Sisk; R Van Antwerp; C Brown-Davis; D A Marciniak; R J Mayer Journal: Gastroenterology Date: 1997-02 Impact factor: 22.682
Authors: W Burke; G Petersen; P Lynch; J Botkin; M Daly; J Garber; M J Kahn; A McTiernan; K Offit; E Thomson; C Varricchio Journal: JAMA Date: 1997-03-19 Impact factor: 56.272
Authors: J D Hardcastle; W M Thomas; J Chamberlain; G Pye; J Sheffield; P D James; T W Balfour; S S Amar; N C Armitage; S M Moss Journal: Lancet Date: 1989-05-27 Impact factor: 79.321