COVID-19 outbreak among physicians at a Canadian curling bonspiel: a descriptive observational study. - Burak, Kelly W.; Law, Sampson; Rice, Chris; Hu, Jia; Fung, Christopher I.; Woo, Allan K.H.; Fonseca, Kevin; Lang, Amanda L.S.; Kanji, Jamil N.; Meatherall, Bonnie L. (CMAJ Open, 2021)