Milam, Joel Hair Cortisol, Perceived Stress and Dispositional Optimism: A Pilot Study among Adolescents. [electronic resource] - Journal of Traumatic Stress Disorders & Treatment Mar 2014 - 1000126 p. digital Publication Type: Journal Article ISSN: 2324-8947 Standard No.: 10.4172/2324-8947.1000126 doi