1680
Clinical pharmacology of etoposide in children undergoing autologous stem cell transplantation for various solid tumours .
 Chemical: etoposide
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: etoposide 
Answer:
 Chemical: etoposide