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CONCLUSIONS This study confirms an increased risk of cancer , especially non - Hodgkins lymphoma , probably attributable to defective immunity , among patients with CHH .
 cancer, non - Hodgkins lymphoma, CHH
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 cancer, non - Hodgkins lymphoma, CHH