20957
The results of the present study , that antioxidant enzyme activities were different between the groups , highlight the possible role of oxidative stress in the pathogenesis of MCT - induced pulmonary hypertension in rats .
 Chemical: MCT
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: MCT