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To investigate effects of aconitine on myocardial injury , we performed cytotoxicity assay in neonatal rat ventricular myocytes ( NRVMs ) , as well as measured lactate dehydrogenase level in the culture medium of NRVMs and activities of serum cardiac enzymes in rats .
 Chemical: aconitine; Disease: myocardial injury; Disease: cytotoxicity; Chemical: lactate
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: aconitine; Disease: myocardial injury; Disease: cytotoxicity; Chemical: lactate