title: Obstructive azoospermia and chronic sinobronchial disease (Young's syndrome) in identical twins.
mesh_terms: D002908:Chronic Disease; D002923:Cilia / Q000502:physiology / Q000648:ultrastructure; D004200:Diseases in Twins; D006801:Humans; D007248:Infertility, Male / Q000209:etiology*; D008297:Male; D009845:Oligospermia / Q000473:pathology / Q000503:physiopathology*; D012008:Recurrence; D012137:Respiratory System / Q000503:physiopathology / Q000648:ultrastructure; D012141:Respiratory Tract Infections / Q000473:pathology / Q000503:physiopathology*; D012852:Sinusitis / Q000473:pathology / Q000503:physiopathology*; D013094:Spermatozoa / Q000502:physiology / Q000648:ultrastructure; D013577:Syndrome; D014427:Twins; D014430:Twins, Monozygotic