# Modified Method of Contrast Transthoracic Echocardiography for the Diagnosis of Patent Foramen Ovale

> Research article (BioMed Research International, 2019) · cited 16× · AI/ML

**Wikidata**: [openalex:W2943843390](https://www.wikidata.org/wiki/openalex:W2943843390)  
**Source**: https://4ort.xyz/entity/modified-method-of-contrast-transthoracic-echocardiography-for-the-diagnosis-of-patent-foramen-ovale