Gregory Staios, Waqas U Khan, Lina Chiuccariello, Laurie H Sellings, Kim De Sousa, Shan Wang, Steven Lo, Alexander K Elkader
Journal: CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 2012;183(18):2149-50
PMID: 22159361
The annual "Roll Up the Rim to Win" contest at Tim Hortons restaurants provides customers the opportunity to win prizes. This study investigated win ratios, prize types and patterns of coffee consumption.
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