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PFO / ASD

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PFO

Identification of High-Risk Patent Foramen Ovale Associated With Cryptogenic Stroke: Development of a Scoring System ASE 2019

Size of PFO

The degree of shunting was defined as small (3 to 9 microbubbles), moderate (10 to 30 microbubbles), or large (>30 microbubbles)

PFO ASA Study 2002