title: [Choanal polyp originated from the supra-ethmoidal bulla recess: a case report].
authors.affiliation: Departmant of Otorhinolaryngology, the First People's Hospital of Foshan, Foshan 528000, China.
authors.forename: X Y
authors.initials: XY
authors.lastname: Yang
authors.affiliation: Departmant of Otorhinolaryngology, the First People's Hospital of Foshan, Foshan 528000, China.
authors.forename: S S
authors.initials: SS
authors.lastname: Shi
authors.affiliation: Departmant of Otorhinolaryngology, the First People's Hospital of Foshan, Foshan 528000, China.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Wang