AUTHOR=De Weerd Al W. TITLE=Actigraphy, the Alternative Way? JOURNAL=Frontiers in Psychiatry VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2014.00155 DOI=10.3389/fpsyt.2014.00155 ISSN=1664-0640