Design of the OPUS School Meal Study: A randomised controlled trial assessing the impact of serving school meals based on the New Nordic Diet

Camilla Trab Damsgaard, Stine-Mathilde Dalskov, Rikke A Petersen, Louise B Sørensen, Christian Mølgaard, Anja Biltoft-Jensen, Rikke Andersen, Anne Thorsen, Inge Tetens, Anders Sjödin, Mads F Hjorth, Ditte Vassard, Jørgen D Jensen, Niels Egelund, Camilla Brørup Dyssegaard, Ib Skovgaard, Arne Astrup, Kim F. Michaelsen