title: The effect of diagnostic hierarchy in genetic epidemiological studies of psychiatric disorders.
authors.forename: M A
authors.initials: MA
authors.lastname: Roy
authors.forename: K S
authors.initials: KS
authors.lastname: Kendler
mesh_terms: D017668:Age of Onset; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics; D006801:Humans; D001523:Mental Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000235:genetics*; D016584:Panic Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics; D015995:Prevalence; D011336:Probability; D012107:Research Design / Q000592:standards