3515
METHODS : Levels of sIL - 2R were measured simultaneously in plasma and pleural fluid in 111 patients with pleural effusions of unknown causes .
 GENE: sIL - 2R
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: sIL - 2R