David R Fleisher1
, Blake Gornowicz2
, Kathleen Adams3
, Richard Burch4
and Edward J Feldman5,6 
1Department of Child Health, University of Missouri School of Medicine, Columbia, Missouri, USA
2Department of Medicine, University of Missouri Hospitals and Clinics, Columbia, Missouri, USA
3Cyclic Vomiting Syndrome Association, Milwaukee, Wisconsin, USA
4Department of Psychiatry, University of Missouri School of Medicine, Columbia, Missouri, USA
5Department of Medicine, Geffen School of Medicine at UCLA, Los Angeles, California, USA
6Department of Pediatrics, Geffen School of Medicine at UCLA, Los Angeles, California, USA