The PMHNP is working with a pediatrician colleague on a journal article to increase awareness and improve diagnostic strategies for early-onset bipolar disorder. Based upon a review of the longitudinal research on this disorder, the literature review of this article should include all the following except?
1) The prevalence rates of early-onset bipolar disorder
2) The risk factors associated with early-onset bipolar disorder
3) The diagnostic criteria for early-onset bipolar disorder
4) The treatment options for early-onset bipolar disorder