Primary developmental disorders of the human enteric nervous system can be grouped into those characterised by an abnormal number of neurones (hyperganglionosis, hypoganglionosis, aganglionosis) ...

Correspondence to Professor Guy Boeckxstaens, Translational Research in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases, Metabolism and Ageing (Chrometa), KU Leuven, Leuven, ...