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To investigate the correlation between carbapenem consumption and rates of antimicrobial resistance in Acinetobacter baumannii , carbapenem consumption was expressed as defined daily dose based on the World Health Organization ( WHO ) anatomical therapeutic chemical classification index .
 Chemical: carbapenem; Chemical: carbapenem
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: carbapenem; Chemical: carbapenem