6358
Median overall survival and time on study was 33 . 2 ( 1 - 71 + ) and 1 . 7 ( 0 . 46 - 12 ) months , respectively .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None