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Novel paracellular marker based on ᴅ-dipeptide structure for highly sensitive quantification with UPLC-MS/MS for in vitro and in vivo blood-brain barrier permeability analysis

Crossref DOI link: https://doi.org/10.1186/s12987-026-00806-5

Published Online: 2026-04-10

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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