Coaching is training or development in which a person called a coach supports a learner in achieving a specific personal or professional goal. The learner is sometimes called a coachee.
From Wikipedia: Tetralogy of Fallot (TOF) is a congenital heart defect which is classically understood to involve four anatomical abnormalities (although only three of them are always present). It is the most common cyanotic heart defect, representing 55-70%, and the most common cause of blue baby syndrome..
Congenital Heart Defects. The ventricles can be deficient in several ways. Single ventricle defects fall into the category known as congenital heart defects, which are present at the time of birth. They are rare and affect only one side of the heart, either the left or the right ventricle at a time.