Acknowledgements
RA Philibert is supported by DA015789. The NIH and The University of Iowa have been granted a patent covering the detection of HOPA polymorphisms as a test for increased susceptibility to schizophrenia. RA Philibert is a potential royalty recipient. HK Gershenfeld is generously supported by NIH (RO1 MH067211) and a NARSAD Independent Investigator Award.