1202
During a transient ( 20 - s ) coronary occlusion , a perfusion defect was observed with contrast echocardiography in 14 of the 15 dogs in which the occlusion was produced .
 Disease: coronary occlusion
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: coronary occlusion