2146
The study was terminated prematurely because an additional 6 patients ( 25 % ) developed sinusoidal obstruction syndrome ( SOS ) , which was fatal in 2 cases .
 Disease: sinusoidal obstruction syndrome; Disease: SOS
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:
 Disease: sinusoidal obstruction syndrome; Disease: SOS