EXHIBIT 10.63 August 9, 2005 Josefina T. Elchico La Jolla Pharmaceutical Company 6455 Nancy Ridge Drive San Diego, California 92121 Dear Jessie, On April 19, 2005, you and La Jolla Pharmaceutical Company (the "Company") entered into an agreement (the...Retention Agreement • August 9th, 2005 • La Jolla Pharmaceutical Co • Biological products, (no disgnostic substances)
