EXHIBIT 3 REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT (this "AGREEMENT"), dated October 21, 1999, by and between FOCAL, INC., a Delaware corporation (the "Company"), and GENZYME CORPORATION, a Massachusetts corporation (the...Registration Rights Agreement • November 8th, 1999 • Genzyme Corp • Biological products, (no disgnostic substances) • Massachusetts
EXHIBIT 2 STOCK PURCHASE AGREEMENT BY AND BETWEENStock Purchase Agreement • November 8th, 1999 • Genzyme Corp • Biological products, (no disgnostic substances) • Massachusetts
