3633
Bilateral nephrectomy eliminated the beneficial effect of L - dopa on blood and brain ammonia and the ammonia coma was not prevented .
 Chemical: L - dopa; Chemical: ammonia; Chemical: ammonia; Disease: coma
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: L - dopa; Chemical: ammonia; Chemical: ammonia; Disease: coma