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Carbohydrate antigen 19 - 9 was significant for judging malignant IPMNs in the binary logistic regression model ( p = 0 . 047 ) .
 malignant IPMNs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 malignant IPMNs