from the article:
The eight doctors who tragically lost their lives in the air crash include radiologist Leonel Ferreira and pediatric cancer experts Sarah Stella and Silvia Osaki.
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I will do some research on these people to see if they have published anything about COVID and turbo cancers.
Leonel Ferreira - Just a normal radiologist who lives in the area, was not going to the conference
Sarah Stella - not a pediatric oncologist
Silvia Osaki - not a pediatric oncologist