# OnCo record paper-welch-albertsen-psa-era-diagnosis-treatment-jnci-2009 (paper). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
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a schema:ScholarlyArticle ;
onco:kind "paper" ;
schema:identifier "paper-welch-albertsen-psa-era-diagnosis-treatment-jnci-2009" ;
schema:name "Prostate cancer diagnosis and treatment after the introduction of prostate-specific antigen screening, 1986 to 2005"@en ;
schema:alternateName "Welch and Albertsen 2009"@en, "1.3 million extra prostate cancer diagnoses"@en ;
schema:description "Counting what the blood test did to a country. In the twenty years after PSA testing began in the United States, an extra 1.3 million men were diagnosed with prostate cancer and about a million were definitively treated, for a benefit that on the most generous assumption reached one man in twenty of them."@en ;
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schema:dateModified "2026-09-25"^^xsd:date ;
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onco:tag "prostate-evidence" ;
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schema:datePublished "2009"^^xsd:gYear ;
schema:author "Welch HG, Albertsen PC." ;
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