Authors: J De Groote; V J Desmet; P Gedigk; G Korb; H Popper; H Poulsen; P J Scheuer; M Schmid; H Thaler; E Uehlinger Journal: Lancet Date: 1968-09-14 Impact factor: 79.321
Authors: R D Soloway; W H Summerskill; A H Baggenstoss; M G Geall; G L Gitnićk; I R Elveback; L J Schoenfield Journal: Gastroenterology Date: 1972-11 Impact factor: 22.682