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. 2017 Dec 21;38(9):1801–1808. doi: 10.1097/IAE.0000000000002004

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Fig. 2. — Correlation between the severity of DR and plasma VEGF concentration. Plasma VEGF showed no statistically significant correlation with DR stage advancement for mild NPDR (66.3 ± 36.9 pg/mL), moderate NPDR (52.3 ± 45.2 pg/mL), severe NPDR (51.7 ± 47.4 pg/mL), or PDR (72.0 ± 55.0 pg/mL) (r = 0.1200, P = 0.3152).