![The differentiated effectiveness of a printed versus a Web-based tailored physical activity intervention among adults aged over 50]()
The differentiated effectiveness of a printed versus a Web-based tailored physical activity intervention among adults aged over 50Peels, D. A.; van Stralen, M. M.; Bolman, C.; Golsteijn, R. H. J.; de Vries, H.; Mudde, A. N.; Lechner, L. · Health Education Research · 2014