Someone asked if I'd share the sources for this article and graphic, so here goes: Some of the sources are linked in the story. Additional sources used for the graphic are mentioned in a source line at the bottom of the graphic, but here are links to the actual pages, in no particular order.

https://www.health.harvard.edu/diseases-and-conditions/covid-19-basics

https://www.hopkinsmedicine.org/health/conditions-and-diseases/coronavirus/coronavirus-kidney-damage-caused-by-covid19

https://www.cdc.gov/coronavirus/2019-ncov/need-extra-precautions/liver-disease.html

https://elemental.medium.com/coronavirus-might-attack-the-brain-too-21ea92a39c04

https://www.sciencemag.org/news/2020/04/how-does-coronavirus-kill-clinicians-trace-ferocious-rampage-through-body-brain-toes

https://www.washingtonpost.com/health/2020/05/10/coronavirus-attacks-body-symptoms/?arc404=true

https://consultqd.clevelandclinic.org/covid-toes-and-other-rashes-associated-with-covid-19/

https://www.nytimes.com/2020/05/01/health/coronavirus-covid-toe.html?action=click&module=Top%20Stories&pgtype=Homepage

https://www.sciencemag.org/news/2020/04/how-does-coronavirus-kill-clinicians-trace-ferocious-rampage-through-body-brain-toes

https://www.npr.org/sections/goatsandsoda/2020/05/06/850707907/from-loss-of-smell-to-covid-toes-what-experts-are-learning-about-symptoms

https://med.stanford.edu/news/all-news/2020/04/stomach-complaints-common-in-covid-19-patients.html

Additional sourcing involved interviews (both by phone and email) with doctors and various scientists, all of whom are mentioned in the article and graphic source line. Hope that's helpful!