T O Cheng. Show Affiliations »
Abstract
Entities: Disease Species
Mesh: See more » AgedEchocardiography/methodsHeart Septal Defects, Atrial/diagnostic imagingHumansValsalva Maneuver
Year: 1991 PMID: 1820777 PMCID: PMC2399199 DOI: 10.1136/pgmj.67.794.1083
Source DB: PubMed Journal: Postgrad Med J ISSN: 0032-5473 Impact factor: 2.401