The percentage of pathological results among DS patients ranged between 0% and 25% in studies that examined the arginine stimulation test (9, 10, 17), 0% and 40% for insulin stimulation tests (8, 9, 20), 37.5% and 61.5% for L-DOPA stimulation tests (14–16, 18), and 50% to 65% for clonidine stimulation tests (14–16, 18, 20). The gene discussed is INS; the disease is Dravet syndrome.