Professor Esme Fuller-Thomson (image) University of Toronto Share Print E-Mail Caption Could some people with schizophrenia in poorer nations simply have a vitamin deficiency? Credit University of Toronto Usage Restrictions Must provide credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.