Borqstein, J.

patient protrusion children group retraction study hospital tympanic membrane classification pocket surgery atelectasi membrane retraction pockets result tympanic method cholesteatoma postoperative preoperative sluder method sluder erosion stridor table haemorrhage middle ear stage difference tonsillectomy length signi infection technique auricle population treatment conduction ventilation middle ventilation tube insertion borgstein incidence assessment otitis media erasmu aspergillu threshold netherland participant surface ficant needle ventilation tube auricular length pars tensa sophia measurement ossicular chain range aspergillosi photograph information diagnosis signi ficant difference aspergillus infection complication bone conduction thresholds signi ficantly retraction pocket obstruction location excision auricular pediatr dissection promontory analysis preoperative abg prominent-ear group