1. University of Washington Twin Registry: construction and characteristics of a community-based twin registry;Afari;Twin Res Hum Genet,2006
2. Anderson RM, Heesterbeek H, Klinkenberg D, et al. 2020. How will country-based mitigation measures influence the course of the COVID-19 epidemic? The Lancet, 395(10228), 931-934. doi:10.1016/s0140-6736(20)30567-5.
3. Half of Canadians taking extra precautions as coronavirus continues to spread around the globe,2020
4. Centers for Disease Control and Prevention. (2020a). For parents: Multisystem Inflammatory Syndrome in Children (MIS-C) associated with COVID-19. Retrieved from https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/children/mis-c.html.
5. Centers for Disease Control and Prevention. (2020b). Keep children healthy during the COVID-19 outbreak. Retrieved from https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/children.html.