| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-meshheading:19557808... | rdf:type | pubmed:MeshHeading | lld:pubmed |
| pubmed-meshheading:19557808... | pubmed:mesh | pubmed-mesh:Chromatography... | lld:pubmed |
| pubmed-article:19557808 | pubmed:meshHeading | pubmed-meshheading:19557808... | lld:pubmed |