title: An unusual case of abdominal pain.
authors.affiliation: Department of Medicine and Pathology, Alberta; Department of University of Calgary, Alberta.
authors.forename: S
authors.initials: S
authors.lastname: Vaughan
authors.affiliation: Department of Medicine and Pathology, Alberta.
authors.forename: M
authors.initials: M
authors.lastname: Sadler
authors.affiliation: Department of Medicine and Pathology, Alberta; Department of University of Calgary, Alberta.
authors.forename: S
authors.initials: S
authors.lastname: Jayakumar
authors.affiliation: Department of Medicine and Pathology, Alberta; Department of University of Calgary, Alberta.
authors.forename: B
authors.initials: B
authors.lastname: Missaghi
authors.affiliation: Department of Laboratory Medicine, Alberta Health Services, Alberta; Department of Calgary Laboratory Services, Calgary, Alberta.
authors.forename: W
authors.initials: W
authors.lastname: Chan
authors.affiliation: Department of Medicine and Pathology, Alberta; Department of Laboratory Medicine, Alberta Health Services, Alberta; Department of University of Calgary, Alberta; Department of Calgary Laboratory Services, Calgary, Alberta.
authors.forename: D L
authors.initials: DL
authors.lastname: Church