1) Association of Organ Procurement Organizations

2) Atrius Health, Inc.

3) Blue Cross and Blue Shield of Minnesota

4) Case Western Reserve University

5) Center for Diagnostic Imaging

6) CHICAGO BOTANIC GARDEN

7) Cooperative of American Physicians - Mutual Protection Trust (CAP-MPT)

8) Denver Health and Hospital Authority

9) Erlanger Health System

10) Florida Hospital Association

11) Front Line Hospital Alliance

12) H. Lee Moffitt Cancer Center & Research Institute Hospital, Inc.

13) Lurie Children's Hospital of Chicago

14) OCHIN, Inc.

15) Solis Mammography

16) Stratasys, Inc.

17) Temple University Health System, Inc.

18) The E-Ordering Coalition

19) UNITED MITOCHONDRIAL DISEASE FOUNDATION

20) Washington Hospital Healthcare System