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Later paternal age and sex differences in schizophrenia symptoms.
Rosenfield PJ, Kleinhaus K, Opler M, Perrin M, Learned N, Goetz R, Stanford A, Messinger J, Harkavy-Friedman J, Malaspina D. Rosenfield PJ, et al. Schizophr Res. 2010 Feb;116(2-3):191-5. doi: 10.1016/j.schres.2009.10.020. Epub 2009 Nov 17. Schizophr Res. 2010. PMID: 19926452 Free PMC article.