2621
The effects of erythrosine ( Red 3 ) , rose bengal B ( Red 105 ) and thyroidectomy on the development of thyroid tumor were examined in male Wistar rats treated with N - bis ( 2 - hydroxypropyl ) nitrosamine ( DHPN ) .
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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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