Incision of atrium of heart	Operation to open an interatrial communication
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Blalock Hanlon operation (procedure)
	Blalock Hanlon operation
	BH - Blalock Hanlon atrial septectomy
	septectomie volgens Blalock-Hanlon
	atriale septectomie Blalock-Hanlon-operatie

Id	299673006
Status	Primitive

Method	Incision - action
Procedure site - Direct	Interatrial septum structure