We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffects of 6/6 and 4/8 Watch Systems on Sleepiness among Bridge Officers.AuthorsHärmä, Mikko; Partinen, Markku; Repo, Risto; Sorsa, Matti; Siivonen, PerttiPublicationChronobiology International: The Journal of Biological & Medical Rhythm Research, 2008, Vol 25, Issue 2/3, p413ISSN0742-0528Publication typearticleDOI10.1080/07420520802106769