Lung Cancer · 2018 · 13 citations · 22 references
Lung Cancer ComorbidomeEpidemiologyPulmonary CareCancer EpidemiologyAdvanced Lung DiseaseMedicineClinical EpidemiologyBronchial NeoplasmPulmonary MedicinePulmonary DiseasePublic HealthOncologyGerman Claims DataLung CancerCancer Research
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Coding Algorithms for Defining Comorbidities in ICD-9-CM and ICD-10 Administrative Data
Hude Quan, Vijaya Sundararajan, Patricia Halfon et al. · Medical Care · 2005 · 10.2K citations
Comorbidity Measures for Use with Administrative Data
Anne Elixhauser, Claudia Steiner, D.R. Harris et al. · Medical Care · 1998 · 9.6K citations