How do members experience Granulocyte-macrophage colony-stimulating factor (GM-CSF)? Top 5 reported purposes & perceived effectiveness Purpose Patients Evaluations Perceived Effectiveness This item is relevant to you: Prostate cancer 1 0 0% 0% 0% 0% 0% This item is relevant to you: Support immune health 1 0 0% 0% 0% 0% 0%