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Hidalgo, I.J., Bhatnagar, P., Lee, CP. et al. Structural Requirements for Interaction with the Oligopeptide Transporter in Caco-2 Cells. Pharm Res 12, 317–319 (1995). https://doi.org/10.1023/A:1016259816661
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DOI: https://doi.org/10.1023/A:1016259816661