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These data demonstrate that the hemodynamic changes associated with d - tubocurarine dosing are only partially explained by histamine release .
 Chemical: d - tubocurarine; Chemical: histamine
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: d - tubocurarine; Chemical: histamine