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. 2024 May 2;99(3):239–253. doi: 10.1007/s12565-024-00770-w

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Fig. 7 — Relationship between the spinal accessory nerve and the internal jugular vein. A and B SAN crossing the IJV anteriorly and posteriorly; C and D SAN passing through/around IJV duplication; E SAN passing through IJV fenestration. IJV internal jugular vein, SAN spinal accessory nerve