John McGrath, University of Queensland (IMAGE) University of Queensland Caption Professor John McGrath led a team that has confirmed a link between neonatal vitamin D deficiency and schizophrenia. Credit The University of Queensland Usage Restrictions Only for use with this story. License Licensed content 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.