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Rütten, Alfred; Schow, Diana; Breda, João; Galea, Gauden; Kahlmeier, Sonja; Oppert, Jean-Michel; van der Ploeg, Hidde; van Mechelen, Willem (2016). Three types of scientific evidence to inform physical activity policy: results from a comparative scoping review. International Journal of Public Health, 61(5):553-563.