Choi, SH; Choi, DH; Song, KS; Shin, KH; Chun, BG (2002). „Zaprinast, an inhibitor of cGMP-selective phosphodiesterases, enhances the secretion of TNF-alpha and IL-1beta and the expression of iNOS and MHC class II molecules in rat microglial cells”. Journal of neuroscience research. 67 (3): 411—21. PMID11813247. doi:10.1002/jnr.10102.
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Choi, SH; Choi, DH; Song, KS; Shin, KH; Chun, BG (2002). „Zaprinast, an inhibitor of cGMP-selective phosphodiesterases, enhances the secretion of TNF-alpha and IL-1beta and the expression of iNOS and MHC class II molecules in rat microglial cells”. Journal of neuroscience research. 67 (3): 411—21. PMID11813247. doi:10.1002/jnr.10102.