AUTHOR=Gilpin Nicholas W. TITLE=Brain Reward and Stress Systems in Addiction JOURNAL=Frontiers in Psychiatry VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2014.00079 DOI=10.3389/fpsyt.2014.00079 ISSN=1664-0640