References:
[1] Fogarty, S. (2006). Comorbidity addressed effectively via an integrated solution. Compensation & Benefits Review, 38(5), 46-51.
[2] Substance Abuse and Mental Health Services Administration, National Survey on Drug Use and Health: National Findings, 2003.
[3] Sipkoff, M. (2006). Depression in the workplace: Depression is prevalent and pernicious, costing employers billion each year. Managed Care Magazine, 1(1), 4-8.