American Thoracic Society (ATS) http://www.thoracic.org/
The American Thoracic Society (ATS) is an independently incorporated, international, educational and scientific society which focuses on respiratory and critical care medicine.
European Respiratory Society (ERS) http://www.ersnet.org/
The European respiratory Society (ERS) promotes research and education in respiratory medicine.
European Society of Cardiology (ESC) http://www.escardio.org/
The European Society of Cardiology (ESC) represents more than 45,000 cardiology professionals across Europe and the Mediterranean. Its mission is to improve the quality of life of the European population by reducing the impact of cardiovascular disease.
The American College of Chest Physicians http://www.chestnet.org/
The American Colleges of Chest Physicians (ACCP) is an organization formed for healthcare providers working in cardiology, pulmonology and cardiovascular and cardiothoracic surgery.
American Heart Association http://www.americanheart.org/
The American Heart Association promotes a healthier lifestyle to help people take care of themselves and their hearts.
International Society for Adult Congenital Cardiac Disease http://www.isachd.org
The purpose of the International Society for Adult Congenital Cardiac Disease is to promote, maintain and pursue excellence in the care of adults with congenital cardiac disease
International Society for Heart and Lung Transplantation http://www.ishlt.org
The International Society for Heart and Lung Transplantation (ISHLT) is an organization dedicated to the advancement of the science and treatment of end-stage heart and lung diseases.
The European League Against Rheumatism (EULAR) http://www.eular.org/
The European League against Rheumatism (EULAR) represents patients and healthcare providers living and working with rheumatic diseases.
American College of Rheumatology http://www.rheumatology.org/
The American College of Rheumatology represents rheumatologists and associated healthcare providers who work in the field of rheumatology.
HIV Medicine http://www.hivmedicine.com/
An online overview of HIV and aids including pulmonary arterial hypertension.
PAH Resource Center: http://www.medscape.com/resource/pulmarthypertension