Physical activity of electric bicycle users compared to conventional bicycle users and non-cyclists: Insights based on health and transport data from an online survey in seven Euro... by Castro, A, Gaupp-Berhausen, M, Dons, E, Standaert, A, Laeremans, M, Clark, A, Anaya, E, Cole-Hunter, T, Avila-Palencia, I, Rojas-Rueda, D, Nieuwenhuijsen, M, Gerike, R, Panis, L, De Nazelle, A, Brand, C, Raser, E, Kahlmeier, S, Götschi, T