Exhibit 24.1

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Stephen T. Falk or Jeffrey W. Henderson and each of them, severally, as his/her attorney-in-fact and agent, with full power of substitution and re-substitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any and all amendments, including post-effective amendments, to the previously filed Registration Statements on Form S-8 listed in Exhibit A hereto, including any amendments thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the U.S. Securities and Exchange Commission, granting unto any such attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all that any such attorney-in-fact and agent, or his substitute, may lawfully do or cause to be done by virtue hereof.

This Power of Attorney has been signed by the following persons in the indicated capacities and on the respective dates indicated below.

Signature	Title	Date
/s/ George S. Barrett	Chairman and Chief Executive Officer and Director (Principal Executive Officer)	February 7, 2013
George S. Barrett
/s/ Jeffrey W. Henderson	Chief Financial Officer (Principal Financial Officer)	February 7, 2013
Jeffrey W. Henderson
/s/ Stuart G. Laws	Senior Vice President and Chief Accounting Officer (Principal Accounting Officer)	February 7, 2013
Stuart G. Laws
/s/ Colleen F. Arnold	Director	February 7, 2013
Colleen F. Arnold
/s/ Glenn A. Britt	Director	February 7, 2013
Glenn A. Britt
/s/ Carrie S. Cox	Director	February 7, 2013
Carrie S. Cox
/s/ Calvin Darden	Director	February 7, 2013
Calvin Darden
/s/ Bruce L. Downey	Director	February 7, 2013
Bruce L. Downey
/s/ John F. Finn	Director	February 7, 2013
John F. Finn
/s/ Gregory B. Kenny	Director	February 7, 2013
Gregory B. Kenny
/s/ David P. King	Director	February 7, 2013
David P. King
/s/ Richard C. Notebaert	Director	February 7, 2013
Richard C. Notebaert
/s/ Jean G. Spaulding	Director	February 7, 2013
Jean G. Spaulding, M.D.

Exhibit A

Registration Statement on Form S-8 No. 33-20895

Registration Statement on Form S-8 No. 33-38021

Registration Statement on Form S-8 No. 33-38022

Registration Statement on Form S-8 No. 33-52535

Registration Statement on Form S-8 No. 33-52537

Registration Statement on Form S-8 No. 33-52539

Registration Statement on Form S-8 No. 33-64337

Registration Statement on Form S-8 No. 33-63283

Registration Statement on Form S-8 No. 333-01927

Registration Statement on Form S-8 No. 333-11803

Registration Statement on Form S-8 No. 333-21631

Registration Statement on Form S-8 No. 333-30889

Registration Statement on Form S-8 No. 333-56655

Registration Statement on Form S-8 No. 333-71727

Registration Statement on Form S-8 No. 333-68819

Registration Statement on Form S-8 No. 333-72727

Registration Statement on Form S-8 No. 333-90415

Registration Statement on Form S-8 No. 333-90417

Registration Statement on Form S-8 No. 333-91849

Registration Statement on Form S-8 No. 333-92841

Registration Statement on Form S-8 No. 333-38190

Registration Statement on Form S-8 No. 333-38192

Registration Statement on Form S-8 No. 333-56008

Registration Statement on Form S-8 No. 333-53394

Registration Statement on Form S-8 No. 333-56006

Registration Statement on Form S-8 No. 333-91598

Registration Statement on Form S-8 No. 333-91600

Registration Statement on Form S-8 No. 333-100564

Registration Statement on Form S-8 No. 333-102369

Registration Statement on Form S-8 No. 333-120006

Registration Statement on Form S-8 No. 333-129725

Registration Statement on Form S-8 No. 333-144368

Registration Statement on Form S-8 No. 333-149107

Registration Statement on Form S-8 No. 333-155156

Registration Statement on Form S-8 No. 333-155158

Registration Statement on Form S-8 No. 333-163128

Registration Statement on Form S-8 No. 333-164736