Authors: F Macrae; G Ekelund; B P Robra; R Gnauck; H Ribet; J Escourrou; J H Bond; N C Armitage; J B Simon Journal: Int J Colorectal Dis Date: 1986-04 Impact factor: 2.571
Authors: S J Winawer; J St John; J Bond; J D Hardcastle; O Kronborg; B Flehinger; D Schottenfeld; N N Blinov Journal: Bull World Health Organ Date: 1990 Impact factor: 9.408