975 F St NW, Suite 550, Washington, DC, 20004, 
3) BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
5) CAMBIA HEALTH SOLUTIONS (FORMERLY KNOWN AS THE REGENCE GROUP)
6) CAREFIRST BLUECROSS BLUESHIELD
7) CHAPTER
8) CHILDREN'S HOSPITAL ASSOCIATION F/K/A NAT'L ASSOCIATION OF CHILDREN'S HOSPITALS
9) DAVITA INC.
10) FOUNTAIN HOUSE
11) GE HEALTHCARE
975 F St NW, Suite 550, Washington, DC, 20004, 
1) AMERICAN HOSPITAL ASSOCIATION
4) BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
6) CAMBIA HEALTH SOLUTIONS (FORMERLY KNOWN AS THE REGENCE GROUP)
7) CAREFIRST BLUECROSS BLUESHIELD
8) CHAPTER
9) CHILDREN'S HOSPITAL ASSOCIATION F/K/A NAT'L ASSOCIATION OF CHILDREN'S HOSPITALS
10) DAVITA INC.
11) FOUNTAIN HOUSE
202-258-9381
975 F St NW, Suite 550, Washington, DC, 20004, 
202-680-7433
840 First Street NE, Mail Stop DC12-32, Washington, DC, 20065, 
202-680-7433
840 First Street NE, Mail Stop DC12-32, Washington, DC, 20065, 
975 F St NW, Suite 550, Washington, DC, 20004, 
3) BLUE CROSS BLUE SHIELD OF MASSACHUSETTS
5) CAMBIA HEALTH SOLUTIONS (FORMERLY KNOWN AS THE REGENCE GROUP)
6) CAREFIRST BLUECROSS BLUESHIELD
7) CHAPTER
8) CHILDREN'S HOSPITAL ASSOCIATION F/K/A NAT'L ASSOCIATION OF CHILDREN'S HOSPITALS
9) DAVITA INC.
10) FOUNTAIN HOUSE
11) GE HEALTHCARE