1. Child Wellness Lab, Maternal & Child Health Research Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
2. Stanford University Mass Spectrometry (SUMS) Lab, Stanford University, Stanford, CA 94305, USA
3. Departments of Anesthesiology (Research), Biomedical Data Science & Pediatrics (Neonatology), Stanford University School of Medicine, Stanford, CA 94305, USA
4. Department of Medicine (Biomedical Informatics Research), Stanford University School of Medicine, Stanford, CA 94305, USA
5. Departments of Pediatrics (Critical Care Medicine) and Anesthesiology (by Courtesy), Stanford University School of Medicine, Stanford, CA 94305, USA