Receptor found that is triggered by acidic foods.
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References
HuangA. L., et al. Nature, 442. 934 - 938 (2006).
IshimaruY., et al. PNAS, 103. 12569 - 12574 (2006).
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Heady, L. How the tongue tastes sour. Nature (2006). https://doi.org/10.1038/news060821-9
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DOI: https://doi.org/10.1038/news060821-9