2468
Since plasma pharmacokinetic studies showed a faster busulfan clearance in children than in adults , this new dose may approximate more closely the adult systemic exposure obtained after the usual 16 - mg / kg total dose , with potential inferences in terms of anticancer or myeloablative effects .
 Chemical: busulfan
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