1753
Radiolabeled metaiodobenzylguanidine ( MIBG ) , an analog of norepinephrine ( NE ) , serves as an index of adrenergic neuron integrity and function .
 Chemical: Radiolabeled metaiodobenzylguanidine; Chemical: MIBG; Chemical: norepinephrine; Chemical: NE
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: Radiolabeled metaiodobenzylguanidine; Chemical: MIBG; Chemical: norepinephrine; Chemical: NE