NCBI – http://www.ncbi.nlm.nih.gov/pmc/articles/pmc3318917/
CBC News – UBC Study – http://www.cbc.ca/beta/news/canada/british-columbia/emotionally-vulnerable-children-on-the-rise-in-b-c-study-says-1.3823082
Autoimmune Link – http://www.autoimmunemom.com/kids-life/anxiety.html