This government search engine for health information returned many useful links for topics relating to Bipolar Disorder in children and adolescents, including articles from government organizations like the National Institute of Mental Health, as well as other nonprofit groups and information sources.
This search engine returned many articles specifically from the National Institute of Mental Health about Bipolar Disorder in children and adolescents. Clearly the NIMH is a highly legitimate organization with trustworthy information which is easily accessed through Healthfinder.gov.