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FIG 1. Schematic drawing of the experimental system. Systemic flow was obtained from a conventional peristaltic pump, and then four air chambers and one check valve were used to produce a nearly constant, laminar, and unidirectional flow. This flow was then superimposed with a pulsatile flow generated by an electronically controlled valve and a resistance system. Intraaneurysmal and systemic pressure were recorded online
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