1. University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
2. Department of Physical Medicine and Rehabilitation, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.
3. CHP–Data Warehouse, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.
4. Department of Critical Care Medicine, Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.
5. Pharmacy Services, Pediatric Critical Care, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.
6. Division of Pediatric Critical Care Medicine, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.