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The aim of this research was to compare the sensitivity and positive predictive value of contrast transcranial Doppler (c‐TCD), contrast transthoracic echocardiography (c‐TTE), and contrast transesophageal echocardiography (c‐TEE), to determine the best method for diagnosing patent foramen ovale (PFO) and to provide a reference for the further improvement of clinical practice. We investigated 161...
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