EX-99 4 w4667661c.txt EXHIBIT 99.3 JOINT FILERS' SIGNATURES Exhibit 99.3 - Joint Filers' Signatures WARBURG PINCUS & CO. By: /s/ Scott A. Arenare Date: January 15, 2009 ------------------------------ ----------------------- Name: Scott A. Arenare Title: Partner WARBURG PINCUS LLC By: /s/ Scott A. Arenare Date: January 15, 2009 ------------------------------ ----------------------- Name: Scott A. Arenare Title: Member WARBURG PINCUS PARTNERS LLC By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare Date: January 15, 2009 ------------------------------ ----------------------- Name: Scott A. Arenare Title: Partner By: /s/ Scott A. Arenare Date: January 15, 2009 ------------------------------ ----------------------- Name: William H. Janeway By: Scott A. Arenare* By: /s/ Jeffrey A. Harris Date: January 15, 2009 ------------------------------ ----------------------- Name: Jeffrey A. Harris * Power of Attorney given by Mr. Janeway was previously filed with the SEC on May 22, 2008 as an exhibit to a Form 4 filed by Warburg Pincus Private Equity VIII L.P. with respect to Nuance Communications, Inc.