關於「Emphysema is caused by」標籤，搜尋引擎有相關的訊息討論：

Emphysema - Symptoms and causes - Mayo Clinicwww.mayoclinic.org › ... › Diseases & ConditionsMolecular pathogenesis of emphysema - PMCpmc.ncbi.nlm.nih.gov › articles › PMC2214683Pathogenesis of Emphysema: From the Bench to the Bedside - PMCpmc.ncbi.nlm.nih.gov › articles ›