Tetrology of Fallot is the commonest cyanotic heart disease . In 1973 , working at Portland, Oregon , Bonchek and colleagues created this classic with intense clinical acumen , that defined the way how we understood TOF in infancy . Such studies have become extinct in this fast paced cardiology academia !
With due tributes , here is a slightly modified version of Bonchek classification of TOF in infancy .
Every cardiologist must read every line of this article which came 37 years ago !