University College London
University College Hospital and the National Hospital for Neurology and Neurosurgery (Queen Square)
AE declares that he has no competing interests.
Dr Anton Emmanuel would like to gratefully acknowledge Dr Mohammad Azam and Dr Richard J. Farrell, previous contributors to this monograph. MA and RJF declare that they have no competing interests.
Assistant Professor of Medicine
Harvard Medical School
Beth Israel Deaconess Medical Center
AL declares that he has no competing interests.
Coordinator of the Gastrointestinal Motility Laboratory
University of Pavia
1st Division of Medicine
IRCCS S. Matteo Hospital Foundation
MDS is the author of references cited in this topic.