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Nigg, Carina; Oriwol, Doris; Wunsch, Kathrin; Burchartz, Alexander; Kolb, Simon; Worth, Annette; Woll, Alexander; Niessner, Claudia (2021). Population density predicts youth's physical activity changes during Covid-19 – Results from the MoMo study. Health & place, 70, p. 102619. Elsevier 10.1016/j.healthplace.2021.102619
