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Validity of Administrative Coding in Identifying Patients With Upper Urinary Tract Calculi

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dministrative databases are increasingly used for epidemiological investigations. We performed a study to assess the validity of ICD-9 codes for upper urinary tract stone disease in an administrative database.



出版机构:Elsevier Science刊物名称:The Journal of Urology
出版时间:2010
ISSN:0022-5347
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