1399
Here we aimed to study the effects of the dopamine agonist Rotigotine on cortical excitability and on central cholinergic transmission in cases of AD .
 Chemical: dopamine; Chemical: Rotigotine
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: dopamine; Chemical: Rotigotine