The impact of deployment length on the health and well-being of military personnel: a systematic review of the literature
Joshua E J Buckman, Josefin Sundin, Talya Greene, Nicola T Fear, Christopher Dandeker, Neil Greenberg, Simon Wessely
Occupational and Environmental Medicine Jan 2011, 68 (1) 69-76; DOI: 10.1136/oem.2009.054692