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In order to elucidate the cellular and molecular processes which are involved in Norrie disease ( ND ) , we have used gene targeting technology to generate ND mutant mice .
 Disease: Norrie disease; Disease: ND; Disease: ND
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: Norrie disease; Disease: ND; Disease: ND