Permanent tooth-germ necrosis following devitalization of a primary tooth by arsenic agent : case report .

砷化物引起的永久牙胚坏死病例报告。

Abstract : lactic acid bacteria are beneficial members of the microbiota in the gastro-intestinal tract of humans . The application of antibiotics could result in function reduction or even devitalization of lactic acid bacteria .

摘要：乳酸菌是人体胃肠道内的益生菌，抗生素的施用可能导致乳酸菌功能的降低或丧失。