The American Heart Association^®/American Stroke Association^® (AHA/ASA) collects millions of patient records in our Quality Programs, creating vast national level databases for advancing scientific research. Data is collected at the patient level in hospitals participating in AHA/ASA Quality programs. Patients entered in the database are from U.S. hospitals only. Data is patient- and hospital-de-identified at an aggregate level. Our quality programs include Get With The Guidelines^® (GWTG) In-Patient and Mission: Lifeline. A key component of these continuous quality improvement programs is the collection of data that participating hospitals can use for their own quality improvement efforts - See Hospital Level Research. There is also the opportunity for some scientific research from our National Level Database.