MARLBOROUGH, Mass.--(BUSINESS WIRE)--Cytyc Corporation (Nasdaq: CYTC) today announced that RiskMetrics Group (ISS), Glass Lewis & Co., and Egan-Jones Proxy Services, the nation’s leading independent proxy advisory firms, recommend that Cytyc stockholders vote “FOR” the proposed combination of Cytyc and Hologic, Inc. ISS, Glass Lewis, and Egan-Jones provide voting advice to hundreds of institutional investors, mutual and pension funds and other fiduciaries.