UConn School of Pharmacy, University of Connecticut, Storrs, Connecticut.

Perioperative and Critical Care—Center for Outcomes Research and Evaluation (PC-CORE), Boston Children’s Hospital, Boston, Massachusetts.

Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, Boston, Massachusetts.

Department of Anaesthesia, Harvard Medical School, Boston, Massachusetts [email protected].

The authors disclose no conflict of interest.