Occupational, commuting, and leisure-time physical activity in relation to risk for Type 2 diabetes in middle-aged Finnish men and women - Eriksson, Johan G.; Hu, Gang; Jousilahti, Pekka; Lindström, Jaana; Nissinen, Aulikki; Qiao, Qing; Siventoinen, Karri; Tuomilehto, Jaakko; Valle, Timo T. (Diabetologia, 2003)