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A busulfan dose calculated on the basis of body surface area , resulting in higher doses in young children , was followed by increased neurotoxicity , close to neurotoxicity incidence observed in adults .
 Chemical: busulfan; Disease: neurotoxicity; Disease: neurotoxicity
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: busulfan; Disease: neurotoxicity; Disease: neurotoxicity