| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-meshheading:9059179-... | rdf:type | pubmed:MeshHeading | lld:pubmed |
| pubmed-meshheading:9059179-... | pubmed:mesh | pubmed-mesh:Ultrasonography... | lld:pubmed |
| pubmed-article:9059179 | pubmed:meshHeading | pubmed-meshheading:9059179-... | lld:pubmed |