572
Although not common , the disorder is the most frequently diagnosed disturbance of porphyrin metabolism in many countries , and further insight into its unusual pathogenesis may clarify the hepatotoxic effects of the 4 etiologic agents .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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