diff --git a/sources/literature.md b/sources/literature.md
index e1b0b88..7c330f4 100644
--- a/sources/literature.md
+++ b/sources/literature.md
@@ -180,7 +180,7 @@ The `Robin_Picked_Papers` table is **new as of today** — created per Robin's 2
 - **DOI**: 10.3390/cells15080703
 - **Wiki.js**: [ID 1708](http://10.10.10.254:3000/zh/organoid/ovb-cerebral-organoid-multiscale-2026)
 - **NocoDB Id**: 1103
-- **PDF**: SeaFile 文献库 7 张整页配图(qwen2.5vl:7b 视觉审核通过)
+- **PDF**: [cells_15_00703.pdf](https://fb.biokingdom.top/f/582d1f055f6e4365a924/?raw=1) + 10 张真实配图(xref extract)
 - **Key finding**: 首次标准化 OVB-类器官(视泡-大脑)vs 大脑类器官多尺度对比;Day 30 FOXG1+VSX2 共表达;TEM 突触+髓鞘;1,625/2,924 DEGs
 - **Business relevance**: OVB-organoids + 3Brain MEA = 眼-脑协同发育研究完整解决方案
 - **Tags**: OVB-organoids, cerebral-organoids, brain-development, retinal-organoid, FOXG1, VSX2