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Sawada H, Morita M, Iwano M (August 2014). “Self/non-self recognition mechanisms in sexual reproduction: new insight into the self-incompatibility system shared by flowering plants and hermaphroditic animals”. 《Biochem. Biophys. Res. Commun.》 450 (3): 1142–8. doi:10.1016/j.bbrc.2014.05.099. PMID24878524.