Letter to the Editor
Polygenetic components for schizophrenia, bipolar disorder and rheumatoid arthritis predict risk of schizophrenia

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Role of funding source

This work was supported by research grants from the Japanese Ministry of Health, Labor and Welfare (H22-seishin-ippan-001), KAKENHI, a 22390225-Grant-in-Aid for Scientific Research (B), a 23659565-Grant-in-Aid for Challenging Exploratory Research and a Grant-in-Aid for Scientific Research on Innovative Areas (Comprehensive Brain Science Network) from the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Japan Foundation for Neuroscience and Mental Health.

Contributors

K. Ohi was critically involved in the design, performed the analysis and interpretation of the data and wrote the manuscript. R. Hashimoto supervised the entire project, was critically involved in the design, analysis and interpretation of the data and was responsible for performing the literature review. M. Kikuchi, M. Ikeda, H. Yamamori, Y. Yasuda, M. Fujimoto, H. Fujino, K. Miura, M. Fukunaga, A. Nakaya, and N. Iwata were involved in the subject recruitment and the clinical diagnostic

Conflict of interest

All authors declare that they have no conflicts of interest.

Acknowledgements

We would like to thank all of the individuals who participated in this study.

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