Appl Immunohistochem Mol Morphol 2013 Oct;21(5):452-9
*Department of Pathology and Laboratory Medicine ∥Gastrointestinal Motility Program, Division of Gastroenterology, Cedars-Sinai Medical Center ¶Department of Pathology & Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA †Department of Anatomical Pathology, Cleveland Clinic Foundation, Cleveland, OH ‡Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY §Department of Pathology, University of Chicago Hospitals, Chicago, IL.