small intestinal crohn s disease
small intestinal crohn s disease
小肠克罗恩病
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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This may be due to surgery to your stomach or small intestine (such as gastric bypass surgery), abnormal bacterial growth in your small intestine, or an intestinal disease, such as Crohn's disease or celiac disease, that interferes with absorption of the vitamin.
CNN: Vitamin deficiency anemia