National Blood Clot Alliance

The National Blood Clot Alliance or NBCA for short, formerly known as the National Alliance for Thrombosis and Thrombophilia (NATT), is a United States nationwide 501(c)(3) nonprofit organization of patients and medical professionals committed to raising awareness about thrombosis and thrombophilia and is dedicated to preventing and treating health problems caused by blood clots and blood clotting disorders. == Organization == NBCA is headquartered in Philadelphia.

Source: Wikipedia — National Blood Clot Alliance (CC BY-SA 4.0)