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Gallstones: A Worldwide Multifaceted Disease and Its Correlations with Gallbladder Carcinoma

Fig 5

(A) Showing digital-ERETIC signal at 0 ppm in solid-state ¹³ C NMR spectra for quantitation of cholesterol. (B) Showing the quantitation result of cholesterol for the three geographical regions.

doi: https://doi.org/10.1371/journal.pone.0166351.g005