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Congenital intrinsic factor deficiency

vitamin B12 deficiency that is characterized by megaloblastic anemia due to the absence of gastric intrinsic factor which results in abnormal vitamin B12 absorption

Pronunciation
/kənˈʤɛnədl ɪnˈtrɪnzɪk ˈfæktər dəˈfɪʃənsi/
/kənˈʤɛnɪtəl ɪnˈtrɪnsɪk ˈfaktə dɪˈfɪʃənsi/