These authors contributed equally: Cassandra D. Josephson, Lisa Kobrynski.

Emory University School of Medicine, Department of Pediatrics, Atlanta, GA, USA

Alexandra Towne, Natia Saakadze & Lisa Kobrynski

Children’s Healthcare of Atlanta, Atlanta, GA, USA

Alexandra Towne, Ravi M. Patel & Lisa Kobrynski

Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA

Alexandra Towne & Ravi M. Patel

Emory University Rollins School of Public Health, Department of Biostatistics and Bioinformatics, Atlanta, GA, USA

Neeta Shenvi & Kirk A. Easley

Johns Hopkins All Children’s Hospital, Cancer and Blood Disorders Institute, St. Petersburg, FL, USA

Cassandra D. Josephson

Johns Hopkins University School of Medicine, Departments of Oncology and Pediatrics, Baltimore, MD, USA

Cassandra D. Josephson

Alexandra Towne: data analysis, manuscript drafting, manuscript editing. Ravi Patel: data analysis, manuscript editing. Neeta Shenvi and Kirk Easley: statistical analysis. Natia Saakadze: lab-based assays, data analysis. Cassandra Josephson: initial study design, acquisition of data, data analysis, and manuscript editing. Lisa Kobrynski: initial study design, acquisition of data, TREC RT-PCR, data analysis, and manuscript editing.

Correspondence to Alexandra Towne.