Authors: J Brynskov; L Freund; S N Rasmussen; K Lauritsen; O S de Muckadell; N Williams; A S MacDonald; R Tanton; F Molina; M C Campanini Journal: N Engl J Med Date: 1989-09-28 Impact factor: 91.245
Authors: A Danielsson; G Hellers; E Lyrenäs; R Löfberg; A Nilsson; O Olsson; S A Olsson; T Persson; L Salde; J Naesdal Journal: Scand J Gastroenterol Date: 1987-10 Impact factor: 2.423