Alliance for Therapeutic Choice and Scientific Integrity
The Alliance for Therapeutic Choice and Scientific Integrity (ATCSI), also known as the NARTH Institute, is a United States organization that promotes conversion therapy, a pseudoscientific practice used in attempts to change the sexual orientation of people with same-sex attraction. ATCSI's promotion of conversion therapy as a scientifically supported therapeutic method is contradicted by overwhelming scientific consensus.
Source: Wikipedia — Alliance for Therapeutic Choice and Scientific Integrity (CC BY-SA 4.0)