MULTI-INSTITUTIONAL EXPERIENCE OF FENTANYL FOR BROWN FAT MITIGATION IN 18FDG-PET/CT FOR PEDIATRIC ONCOLOGY PATIENTS. (October 2022) - Gaylord, W.; Willen, F.; Ata, N. Abu; Trout, A.; Audino, A.; Sharp, S.; Bobbey, A.; Sims, J.; Frye, C.; Blazin, L.; Belsky, J.