The Extracorporeal Life Support Organization (ELSO) is a non profit organization established in 1989 supporting health care professionals and scientists who are involved in extracorporeal membrane oxygenation (ECMO). ELSO maintains a registry of both facilities and specialists trained to provide ECMO services. ELSO also maintains registry information that is used to support clinical research, support regulatory agencies, and support individual ELSO centers. ELSO provides educational programs for active centers as well as for facilities who may be involved in the transfer of patients to higher levels of care.