EXHIBIT 1

 
JOINT FILING AGREEMENT
 
In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the common stock of HCA Holdings, Inc. and further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint filing.  In evidence thereof, the undersigned, being duly authorized, hereby execute this Joint Filing Agreement as of February 14, 2012.

 
   
BANK OF AMERICA CORPORATION
 
 
By:
/s/ Michael Didovic                         
Name:  Michael Didovic
Title:  Authorized Signatory

 
   
MERRILL LYNCH & CO., INC
 
 
By:
/s/ Lawrence Emerson                    
Name:  Lawrence Emerson
Title:  Attorney-In-Fact

 
   
MERRILL LYNCH GROUP, INC.
 
 
By:
/s/ Margaret Nelson                      
Name:  Margaret Nelson
Title:  Authorized Signatory

 
   
MERRILL LYNCH VENTURES, LLC
 
 
By:
/s/ Margaret Nelson                      
Name:  Margaret Nelson
Title:  Vice President and Secretary

 
   
MERRILL LYNCH VENTURES L.P. 2001
By:  Merrill Lynch Ventures, LLC, its general partner
 
 
By:
/s/ Margaret Nelson                      
Name:  Margaret Nelson
Title:  Vice President and Secretary