Dilation of upper respiratory tract	Operation on frontal sinus	Procedure on organ
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Dilation of frontonasal duct (procedure)
	Dilation of frontonasal duct
	Frontonasal duct dilatation
	dilatatie van recessus frontalis

Id	30574003
Status	Primitive

Method	Dilation - action
Procedure site - Direct	Frontal recess