" Insulin was now not only readily available, but also affordable. George Walden's improved methodology also allowed Eli Lilly and Company to reduce the price per unit several times after its introduction. Although Eli Lilly held the exclusive franchise of insulin production in the United States, the company was committed to keeping the price as low as possible so that it would be available to all diabetics. "

― , Breakthrough: Elizabeth Hughes, the Discovery of Insulin, and the Making of a Medical Miracle