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..
Ventricular septal defect (VSD) is the most common congenital heart defect seen in children (Fig. 3). Defects can occur at various locations in the septum but most commonly occur in the membranous (Fig. 4) or muscular portions.