Mortality following bone metastasis and skeletal-related events among men with prostate cancer: a population-based analysis of US Medicare beneficiaries, 1999–2006

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The Statistical Analysis of Failure Time Data.

Murray Aitkin, John D. Kalbfleisch, Ross L. Prentice · Biometrics · 1981 · 10K citations

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Presentation adapting a clinical comorbidity index for use with ICD-9-CM administrative data: Differing perspectives

Patrick S. Romano, Leslíe L. Roos, James G. Jollis · Journal of Clinical Epidemiology · 1993 · 1.7K citations

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