Self-assessmentCMERadioGraphic
自我评价式继续医学教育读物
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引言
马赛克征和空气潴留：有多少是正常的？
Etiology病因学SmallAirwaysDisease
Smallairwaysaredefinedasnoncartilaginousairwayswithaninternaldiameteroflessthan2mmandarelocatedfromapproximatelytheeighthgenerationofairwaysdowntotheterminalbronchioles(smallestairwayswithoutalveoli)andrespiratorybronchioles(airwaysdistaltoterminalbronchiolesthatpartakeingasexchange)(12).Innormalpatients,thesesmallairwaysarenotvisibleonCTduetotheirsmallsize(13).However,incertaininstances,thesesmallairwaysmaybe北京看白癜风病最好的医院北京最权威白癜风专科医院
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