| pubmed-article:11602018 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C2004062 | lld:lifeskim |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C1552723 | lld:lifeskim |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C2587213 | lld:lifeskim |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C0470187 | lld:lifeskim |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C1552658 | lld:lifeskim |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C1707689 | lld:lifeskim |
| pubmed-article:11602018 | lifeskim:mentions | umls-concept:C1709450 | lld:lifeskim |
| pubmed-article:11602018 | pubmed:dateCreated | 2003-10-29 | lld:pubmed |
| pubmed-article:11602018 | pubmed:abstractText | Although a randomized trial represents the most rigorous method of evaluating a medical intervention, some interventions would be extremely difficult to evaluate using this study design. One alternative, an observational cohort study, can give biased results if it is not possible to adjust for all relevant risk factors. | lld:pubmed |
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| pubmed-article:11602018 | pubmed:language | eng | lld:pubmed |
| pubmed-article:11602018 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:11602018 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:11602018 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:11602018 | pubmed:issn | 1471-2288 | lld:pubmed |
| pubmed-article:11602018 | pubmed:author | pubmed-author:KramerB SBS | lld:pubmed |
| pubmed-article:11602018 | pubmed:author | pubmed-author:LindemanK SKS | lld:pubmed |
| pubmed-article:11602018 | pubmed:author | pubmed-author:BakerS GSG | lld:pubmed |
| pubmed-article:11602018 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:11602018 | pubmed:volume | 1 | lld:pubmed |
| pubmed-article:11602018 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:11602018 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:11602018 | pubmed:pagination | 9 | lld:pubmed |
| pubmed-article:11602018 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:11602018 | pubmed:meshHeading | pubmed-meshheading:11602018... | lld:pubmed |
| pubmed-article:11602018 | pubmed:year | 2001 | lld:pubmed |
| pubmed-article:11602018 | pubmed:articleTitle | The paired availability design for historical controls. | lld:pubmed |
| pubmed-article:11602018 | pubmed:affiliation | Division of Cancer Prevention, National Cancer Institute, Bethesda, MD, USA. sb16i@nih.gov | lld:pubmed |
| pubmed-article:11602018 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:11602018 | pubmed:publicationType | Comparative Study | lld:pubmed |
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