Funding for this research was provided by:
Internal Funding, Stanford University
Text and Data Mining valid from 2019-01-25
First Online: 25 January 2019
Compliance with Ethical Standards
: Carole Lin, Curtis Darling, and Ban C. H. Tsui have no conflicts to report.
: The authors acknowledge internal departmental financial support (Department of Anesthesiology, Perioperative and Pain Medicine, Lucille Packard Children’s Hospital, Stanford University, School of Medicine, Stanford, CA, USA).