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Effect of 443c81, an inhaled mu-opioid receptor agonist in asthma.
Pavord I, Hall I, Wahedna I, Cooper S, Tattersfield A. Pavord I, et al. Among authors: cooper s. Clin Exp Allergy. 1994 Feb;24(2):144-8. doi: 10.1111/j.1365-2222.1994.tb00211.x. Clin Exp Allergy. 1994. PMID: 8187029 Clinical Trial.
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