| Dhananjay Vaidya | Department of Medicine Johns Hopkins University Baltimore Maryland USA. |
| Dhananjay Vaidya | and Data Management Core Johns Hopkins University Baltimore Maryland USA. |
| Dhananjay Vaidya | School of Public Health Johns Hopkins University Baltimore Maryland USA. |
| Eric D Austin | Department of Pediatrics Vanderbilt University Medical Center Nashville Tennessee USA. |
| Dunbar Ivy | Heart Institute, Children's Hospital Colorado University of Colorado Aurora Colorado USA. |
| Allen D Everett | Department of Pediatrics Johns Hopkins University Baltimore Maryland USA. |