Two years ago, I spent a week in Houston helping my stepbrother while he underwent treatment for Stage 4 lymphoma at the University of Texas MD Anderson Cancer Center. I sat with him while a nurse cleaned his chemo port and made records of her work, to keep his medical team updated. I accompanied him for the blood tests that determined his readiness for the next treatment. I stayed by his bed as his stem cells were harvested for a transplant, one of the cutting-edge, evidence-based therapies that ultimately saved his life.