Extract entities of the given entity type from the text. Please return a list of entities, e.g. ["Vancomycin", "Zosyn"], return [] when no anwer. Entity Type: Disease \n Text: Risk of transient hyperammonemic encephalopathy in cancer patients who received continuous infusion of 5 - fluorouracil with the complication of dehydration and infection .Answer: In your entire response, the letter f should appear less than 43.
user