449
Patients ' characteristics were : male / female ratio 20 / 13 ; median age 57 ( 27 - 75 ) years ; median WHO status 1 ( 0 - 2 ) .
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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:
 None