The Importance of Unresolved Fatigue in Depression: Costs and Comorbidities

Prevalence, Severity, and Comorbidity of 12-Month DSM-IV Disorders in the National Comorbidity Survey Replication

Ronald C. Kessler, Wai Tat Chiu, Olga Demler et al. · Archives of General Psychiatry · 2005 · 12.1K citations · Full text

Education, Behavioral Sciences, Psychiatry +14

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 · 10.6K citations

Health Professions, Internal Medicine, Clinical Classification Systems +16

The Epidemiology of Major Depressive Disorder

Ronald C. Kessler, Patricia A. Berglund, Olga Demler et al. · JAMA · 2003 · 8K citations

Medicine, Psychiatry, Behavioral Epidemiology +10

Anxiety Disorders in Primary Care: Prevalence, Impairment, Comorbidity, and Detection

Kurt Kroenke, Robert L. Spitzer, Janet B. W. Williams et al. · Annals of Internal Medicine · 2007 · 4.8K citations

Nursing, Psychiatry, Psychology +17

The 16-Item quick inventory of depressive symptomatology (QIDS), clinician rating (QIDS-C), and self-report (QIDS-SR): a psychometric evaluation in patients with chronic major depression

A. John Rush, Madhukar H. Trivedi, Hicham M. Ibrahim et al. · Biological Psychiatry · 2003 · 3.9K citations

Social Sciences, Psychiatry, Psychology +17