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Rough or uneven texture
Usually, WFI systems utilize high-temperature (above 80 Celsius) environments, and continuously-circulating water systems
Ting, K
In people whose vitamin B 12 deficiency is related to overgrowth of intestinal bacteria, treatment with oral antibiotics such as tetracycline (sold under several brand names) may stop bacterial overgrowth and allow the absorption of vitamin B 12 to return to normal
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