 I'm Dr. Jorge Gomez, thoracic medical oncologist at the Mount Sinai Hospital. Comprehensive biomarker testing is looking for either substances in the blood or mutations in some of the genes of the cancer cells that can help us identify special types of lung cancer that can be treated with what we call targeted therapies. Letting my children know brought all of us a sense of hope. To give them hope that mom is going to be around to see you grow up. And I promised them that.