| acc.org | American College of Cardiology |
| ama-assn.org | American Medical Association - AMA |
| diabetes.org | American Diabetes Association. |
| ada.org | American Dental Association |
| aams.org | Association of Air Medical Services |
| rheumatology.org | American College of Rheumatology |
| hfsa.org | Heart Failure Society of America, Inc. |
| clinicians.org | Association of Clinicians for the Underserved (ACU) |
| amro-uk.co.uk | AMRO : Association of Medical Reporting Organisations |
| ambulatorymedicine.com | American Academy of Ambulatory Care |
| fascrs.org | www.fascrs.org/ |
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