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Seasonal Differences in the Cost and Engagement of Facebook Advertisements for a Physical Activity Smartphone App
- Northcott, Celine, Curtis, Rachel, Bogomolova, Svetlana, Olds, Timothy, Vandelanotte, Corneel, Plotnikoff, Ronald, Maher, Carol
Hymns and hints: a prisoner of war's notebook in Italy
- Kittel, Katrina
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