1. Division of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA (S.Q.D., H.G., B.M.N., D.B.G., B.H., D.S., C.D.R., A.Y.S., D.M.K., A.M.D, C.A.A.).
2. Department of Management Science and Engineering, Stanford University, Palo Alto, CA (Y.S., D.S.).
3. Department of Cardiothoracic Surgery, Stanford University School of Medicine, Palo Alto, CA (M.M.).
4. Clinical Excellence Research Center, Stanford University School of Medicine, Palo Alto, CA (D.S.).