title: Endoscopic view of maxillary sinus ostia.
authors.forename: E
authors.initials: E
authors.lastname: Yanagisawa
authors.forename: K
authors.initials: K
authors.lastname: Yanagisawa
mesh_terms: D004724:Endoscopy; D005004:Ethmoid Bone; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000033:anatomy & histology* / Q000601:surgery