4049
A significant increase in the myocardial t1 / 2 of the I - 131 HA was observed only at a higher cumulative dose , 10 mg / kg .
 Chemical: I - 131 HA
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:
 Chemical: I - 131 HA