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. 2020 May 26;14(9):2248–2260. doi: 10.1038/s41396-020-0682-7

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© The Author(s) 2020

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Fig. 2 — a ESI-MS spectra of anthranilic acid. b ¹H NMR spectra of anthranilic acid. c ¹³C NMR spectra of anthranilic acid. d Chemical structure of anthranilic acid.