TY - GEN AU - Connor,Daniel F AU - Ford,Julian D TI - Comorbid symptom severity in attention-deficit/hyperactivity disorder: a clinical study SN - 1555-2101 PY - 2012///0829 KW - Adolescent KW - Affective Symptoms KW - epidemiology KW - Aggression KW - Attention Deficit Disorder with Hyperactivity KW - Case-Control Studies KW - Child KW - Child Behavior Disorders KW - Child, Preschool KW - Cross-Sectional Studies KW - Female KW - Humans KW - Male KW - Mental Disorders KW - Multivariate Analysis KW - Severity of Illness Index KW - United States KW - Young Adult N1 - Publication Type: Journal Article UR - https://doi.org/10.4088/JCP.11m07099 ER -