Robroek, Suzan J W Initial and sustained participation in an internet-delivered long-term worksite health promotion program on physical activity and nutrition. [electronic resource] - Journal of medical Internet research Mar 2012 - e43 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1438-8871 Standard No.: 10.2196/jmir.1788 doi Subjects--Topical Terms: CognitionFemaleHealth PromotionHealth Status IndicatorsHumansInternetLife StyleMaleMotor ActivityNutritional StatusWorkplace