1. Larkin GL, Claassen CA, Emond JA, Pelletier AJ, Camargo CA. Trends in U.S. emergency department visits for mental health conditions, 1992 to 2001. Psychiatr Serv. 2005;56(6):671–7.
2. Wilson MP, Zeller SL. Introduction: reconsidering psychiatry in the emergency department. J Emerg Med. 2012;43(5):771–2.
3. Vilke GM, Wilson MP. Agitation: what every emergency physician should know. Emerg Med Rep. 2009;30(19):233–44.
4. Owens PL, Mutter R, Stocks C. Mental health and substance abuse-related emergency department visits among adults, 2007: statistical brief #92. Healthcare Cost and Utilization Project (HCUP) Statistical Briefs. Rockville; 2006.
5. Pitts SR, Niska RW, Xu J, Burt CW. National hospital ambulatory medical care survey: 2006 emergency department summary. 2006.