[Zenker diverticulum of stage IV causing dysphagia: a case report].
Cheng
Ke-jia
KJ
Wang
Shen-qing
SQ
Lin
Shan
S
D000368:Aged; D003680:Deglutition Disorders / Q000209:etiology*; D006801:Humans; D008297:Male; D016672:Zenker Diverticulum / Q000150:complications* / Q000473:pathology