RT Journal Article SR Electronic T1 C Pyloris: role in gastric mucosal disease JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 12 OP 13 VO 56 IS 1 A1 James S. Barthel YR 1989 UL http://www.ccjm.org/content/56/1/12.abstract AB