Airway procedure	Contrast procedure of cavity of the head	Contrast radiography of nasopharynx	Procedure on nose
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Choanogram (procedure)
	Choanogram
	röntgencontrastonderzoek van choane
	röntgencontrastonderzoek van apertura nasalis posterior

Id	241134006
Status	Defined

Method	Radiographic imaging - action
Procedure site - Direct	Structure of choana
Using substance	Contrast media