They are known for publishing guidelines on cardiovascular disease and prevention, standards on basic life support, advanced cardiac life support (ACLS), and pediatric advanced life support (PALS), and in 2014 issued its first guidelines for preventing strokes in women. They are known also for operating a number of highly visible public service campaigns starting in the 1970s, and also operate a number of fundraising events. In 1994, the "Chronicle of Philanthropy", an industry publication, released a study that showed the American Heart Association was ranked as the 5th "most popular charity/non-profit in America." The association was listed as the 22nd largest charity by Forbes in 2018.