It is postulated that N nitrosamides, such as NMU could be formed endogenously in the stomachs of local residents who consume fish sauce often and have a higher exposure to nitrite in their stomachs.
因此推测胃内亚硝酸盐水平较高且经常食用鱼露者，胃内极可能有NMU 等亚硝酰胺的内源性合成。
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