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Histopathological evaluation of lungs in various groups. The sections were stained by HE staining; magnification, ×200. IR, ischemia-reperfusion; LDH, low dose dexmedetomidine hydrochloride; HDH, high dose dexmedetomidine hydrochloride; Y+D, yohimbine and dexmedetomidine hydrochloride; Y, yohimbine; HE, hematoxylin and eosin.
