Structured supervised exercise training or motivational counselling during pregnancy on physical activity level and health of mother and offspring: FitMum study protocol oleh Astrid Pernille Jespersen, Andreas Kryger Jensen, Ellen Christine Leth Løkkegaard, Caroline Borup Roland, Signe de Place Knudsen, Saud Abdulaziz Alomairah, Anne Dsane Andersen, Jane Bendix, Tine D Clausen, Stig Molsted, Grete Teilmann, Jakob Eg Larsen, Gerrit van Hall, Emil Andersen, Romain Barrès, Ole Hartvig Mortensen, Lise Tarnow, Bente Stallknecht