Authors: S R Hassig; W G Linscheer; U K Murthy; C Miller; A Banerjee; L Levine; K Wagner; R P Oates Journal: Dig Dis Sci Date: 1993-08 Impact factor: 3.199
Authors: P Routledge; J A Vale; D N Bateman; G D Johnston; A Jones; A Judd; S Thomas; G Volans; L F Prescott; A Proudfoot Journal: BMJ Date: 1998-12-12