Habbous, Steven, Anna Lambrinos, Kirsten Ming, and Erik Hellsten. “A Cohort Study of Patients Hospitalised With SARS-CoV-2 Infection in Ontario: Patient Characteristics and Outcomes by Wave”. Swiss Medical Weekly 154, no. 3 (March 13, 2024): 3636. Accessed April 21, 2024. https://smw.ch/index.php/smw/article/view/3636.