4706
Periodic monitoring of cerebruspinal fluid methotrexate levels may be predictive of the development of serious neurotoxicity .
 Chemical: methotrexate; 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: methotrexate; Disease: neurotoxicity