Hypoplastic Left Heart Syndrome / Norwood Operation http://www.cincinnatichildrens.org/health/h/hlhs/ https://www.cincinnatichildrens.org/health/h/hlhs Cincinnati Children's Hospital Cincinnatti Children's Hospital Cincinnatti Children's Hospital http://www.cincinnatichildrens.org/health/h/hlhs/ http://www.cincinnatichildrens.org/health/h/hlhs/ hypoplastic left heart syndrome http://www.cincinnatichildrens.org/health/h/hlhs/