ISCAS (Internation Society for Coronary Artery Surgery) https://iscascoronary.org/
WTSA (Western Thoracic Surgical Association) https://westernthoracic.org/
ECTSS (Eastern Cardiothoracic Surgical Society) https://ectss.org/
CHSS (Congenital Heart Surgeons' Society) https://chss.org/