CSO (Canadian Society of Otolaryngology - Head & Neck Surgery) position paper on return to Otolaryngology - Head & Neck Surgery Clinic Practice during the COVID-19 pandemic in Canada. - Chan Y; Angel D; Aron M; Hartl T; Moubayed SP; Smith KA; Sommer DD; Sowerby L; Spafford P; Mertz D; Witterick IJ (Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale, 2020)