Ethmoid sinusectomy	Frontal sinusectomy
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External frontoethmoidectomy (procedure)
	External frontoethmoidectomy
	externe fronto-etmoïdectomie

Id	265026003
Status	Primitive

Method	Excision - action
Procedure site - Direct	Ethmoid sinus structure

Method	Excision - action
Procedure site - Direct	Frontal sinus structure

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Howarth's operation