It's been scary at times, and sometimes his parents have been too overprotective, but Alex Harkins has managed to live a pretty normal life, despite his serious health problems. But the time has come to repair his congenital heart defect-and new fears and questions arise as Alex faces corrective surgery.Alex is lucky: his mother and father-a pediatric nurse and cardiac surgeon-are able to fully explain to Alex the reason for his operation, the procedure...