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. 2022 Jan 5;602(7895):135–141. doi: 10.1038/s41586-021-04265-w

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© The Author(s) 2022

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Extended Data Fig. 3 — a, Left and right panels show extracted ion chromatogram of a pure standard of penicillin G and KPN in T. erinacei culture broth, respectively. b, Upper and lower panels show MS² spectra of KPN in a T. erinacei culture broth and a pure standard of penicillin G, respectively.