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Agonists activating beta ( 2 ) - adrenoceptors ( beta ( 2 ) ARs ) on airway smooth muscle ( ASM ) are the drug of choice for rescue from acute bronchoconstriction in patients with both asthma and chronic obstructive pulmonary disease ( COPD ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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