Dr. Karajannis speaks during an interview with Reuters' U.S. Health Editor Gershberg about her son at...
Dr. Matthias Karajannis speaks during an interview with Reuters' U.S. Health Editor Michele Gershberg about her son at Memorial Sloan Kettering Cancer Center in New York City, U.S., November 27, 2018. Picture taken November 27, 2018. To match Special Report GENOMICS-TUMOR/ REUTERS/Brendan McDermid