Exhibit 99.7

CREDIT SUISSE CREDIT SUISSE
Eleven Madison Avenue
New York, NY 10010-3629 Tel      1 212 325 2000
www.credit-suisse.corn

Acceptance of Request for Extension

December, 2006

Aetna Inc.
151 Farmington Avenue
Hartford, CT 06156

Re: Amended and Restated Five-Year Credit Agreement dated as of January 20, 2006 (the “Credit Agreement”)

Attention: Alfred P. Quirk, Vice President, Finance and Treasurer

Dear Al:

We have received your Extension Request, dated December 5, 2006, and pursuant to Section 2.06(c) (Maturity of Loans) of the above-referenced Credit Agreement, we hereby agree to the extension set forth in such request. Upon the effectiveness of the Extension Request in accordance with Section 2.06(c) of the Credit Agreement, the new Maturity Date will be January 20, 2012.

We have made a notation of this extension on the Schedule of Loans, Payments of Principal attached to our Syndicated Note(s).

Very truly yours,

CREDIT SUISSE, Cayman Islands Branch

By:	/s/ David Dodd
	Name: David Dodd
	Title: Vice President
By:	/s/ James Neira
	Name: James Neira
	Title: Associate