"She dedicated her whole life to being a doctor and helping children with cancer," Clark said. "It's very, very unfortunate that she died this way."
Ketunuti kept a blog from March 2005 to October 2008 and wrote of her travels and studies in the U.S. and abroad.
After earning a doctorate in medicine from Stanford University, she went to Botswana in 2005 on an AIDS research fellowship and then completed a surgical internship at Georgetown University Hospital before moving to Philadelphia in May 2008 to begin a pediatrics residency.
"This is hopefully the last move for at least 3 years," she wrote, "given that's how long it should take to finish a pediatrics residency."
She called the hospital's pediatrics program "incredibly supportive."
"People are rooting for my success and education, which is a very different vibe than at Georgetown," she wrote. "As sexy as it was to be a life-saving surgeon, I feel much better suited for pediatrics."