RT Journal Article SR Electronic T1 Pathogenesis of gastrointestinal infection JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 299 OP 300 DO 10.7861/clinmedicine.8-3-299 VO 8 IS 3 A1 Alan Phillips YR 2008 UL http://www.rcpjournals.org/content/8/3/299.abstract AB