Contreras-Martos S. Leiva A. Sanchez Á. Motrico E. Bellón J. Landesa S.A. Magallón-Botaya R. Casajuana-Closas M. Zabaleta-Del-olmo E. Bolíbar B. Maderuelo J.-Á. Llobera J. Implementation of the eira 3 intervention by targeting primary health care practitioners: Effectiveness in increasing physical activity Int. j. environ. res. public health 10.3390/ijerph181910537 2021 2021